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A review of multiaxial low-cycle fatigue criteria for life prediction of metals Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-24 Lorenzo Pagliari, Franco Concli
Most of real-world structural components that undergo cyclic loading feature multiaxial fatigue. When the cyclic loading involves also significant plastic deformation, multiaxial low-cycle fatigue takes place. Applications where multiaxial low-cycle fatigue can be observed very often involve metal components. To predict their lives multiple criteria and models have been proposed, but their development
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Damage investigation of hybrid flax-glass/epoxy composites subjected to impact fatigue under water ageing Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-24 A Goumghar, K Azouaoui, M Assarar, W Zouari, S Mouhoubi, R Ayad, A El Mahi
The aim of this study is to investigate the fatigue behaviour of hybrid flax-glass/epoxy composites under repeated impact loading subsequent to water ageing. Different plates of these composite materials were fabricated using the vacuum infusion technique. Five stacking sequences were considered: [F8], [G/F3]S, [G2/F2]S, [G3/F]S, and [G8], where F and G stand for flax/epoxy and glass/epoxy plies, respectively
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Damage and fracture studies of continuous flax fiber-reinforced composites 3D printed by in-nozzle impregnation additive manufacturing Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-18 Xikun Wu, Geoffrey Ginoux, Joseph Paux, Samir Allaoui
Additive manufacturing (AM) of continuous yarn-reinforced biobased composites presents multi-functional properties and low environmental impact of this technology. Few studies focused on the mechanical damage mechanisms of continuous biobased composites obtained by AM processes, while it is a topic of high interest for the mastery of mechanical behaviors and optimization of the materials for high requirement
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Effort of damage parameter in assessment of low cycle fatigue Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-14 Mykola Bobyr, Vadim Silberchmidt, Viktor Koval
A low-cycle fatigue (LCF) analysis is one of the main design stages for highly loaded structural elements used in various applications. For this analysis, it is necessary to determine the values of local stresses and deformations, taking into account both elastic and plastic regions in the zones of stress concentration. This study presents and assesses the engineering methods used for prediction of
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A novel statistical damage constitutive model of rock joints considering normal stress and joint roughness Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-14 Qiuxin Gu, Qiang Zhang, Wanli Dai, Xiaowei Quan, Sizhe Ye, Tao Li
The shear constitutive model of rock joints is of great significance to the stability analysis in rock engineering, and it is closely related to the normal stress ([Formula: see text]) and joint roughness coefficient ( JRC). However, the existing investigations seldom consider the influences of [Formula: see text] and JRC simultaneously. Therefore, a novel damage constitutive model considering the
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Energy based damage model for low-cycle fatigue of ductile materials Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-14 Zoran B Perović, Dragoslav M Šumarac, Stanko B Ćorić, Petar M Knežević, Maosen Cao, Ismail Nurković
A uniaxial material model for fatigue damage accumulation, established on the connection of unit elements, is presented in this paper. Although these units are regarded as micro-elements in the proposed model, they are based on a hysteretic operator that enables calculating hysteretic energy loss as an analytical expression. Further, this unit element represents a mechanical model with elastoplastic
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Influence of hydrothermal fatigue on mechanical properties and damage mechanisms of hemp-reinforced biocomposites and comparison with glass-reinforced composites Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-14 Quentin Drouhet, Fabienne Touchard, Laurence Chocinski-Arnault
The aim of this work was to evaluate the tensile properties and the damage mechanisms of hemp and glass-reinforced composites when they were subjected to hydrothermal fatigue. Each wet/dry cycle consisted in immersing samples in water at 60°C during 12 days and drying them in an oven at 40°C during 2 days. Three different matrices (Epolam, Greenpoxy and Elium) were studied with two reinforcement orientations
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Effects of high temperature and strain rate on the impact-induced inter-laminar shear behavior of plain woven CF/PEEK thermoplastic composites Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-10 Xu Zhang, Zhongxiang Pan, Jiajia Yu, Chengcai Yang, Zhenyu Wu
This paper aims to investigate the interlaminar shear properties and failure mechanisms of plain woven carbon fabric/polyetheretherketone (CF/PEEK) thermoplastic composites under high strain rate impact loads at different temperatures (25°C, 120°C, 295°C). A reliable hot air flow heating method with SHPB is creatively employed for short beam shear experiments. A multi-scale model was developed to predict
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Analysis of dynamic disturbance and multistage shear creep damage evolution law of the weak intercalated layers in slope under the influence of coupled damage effect Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-10 Zeqi Wang, Bin Hu, Jing Li, Kuikui Chen, Zhuoxi Zhong, Xiangyu Zhang
Based on the damage characteristics of multistage shear creep in weak intercalated layers (carbonaceous mud shale) of slopes under the influence of dynamic disturbance, the effective bearing area method was used. A new coupled damage equation (dynamic disturbance damage, shear creep damage, and initial damage) was established through further derivation, and its applicability was demonstrated. The calculation
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Experimental study on energy and damage evolution of dry and water-saturated dolomite from a deep mine Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-10 Pingkuang Luo, Diyuan Li, Jinyin Ma, Junjie Zhao, Abdul Jabbar
The deformation and failure of a rock is closely related to the strain energy consumption during the load process of rock. To investigate the effect of water on energy evolution and damage characteristics of dolomite samples from a deep mine, the uniaxial compression tests were carried out on dry and water-saturated dolomite samples at different burial depths (900 m–1200 m). The effects of water on
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An improved dual shear unified strength model (IDSUSM) considering strain softening effect Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-07 Shen Yan, Dajiang Geng, Ning Dai, Minjian Long, Zhicheng Bai
This study proposes an improved dual shear unified strength model by introducing the plastic internal variable which reflects the collective effects of strain softening, intermediate principal stress and unequal strength under tension and compression. The improved model is then simplified into simple forms for typical stress states, including uniaxial tension and compression, plane stress pure shear
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Interaction of defects, martensitic transformation and slip in metastable body centred cubic crystals of Ti-10V-2Fe-3Al: A study via crystal plasticity finite element methods (CPFEM) Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-07 P Christie, MA Siddiq, RM McMeeking, ME Kartal
Metastable β titanium alloys are widely applied in many industries. These alloys can have plastic deformation via dislocation slip, twinning, stress-induced martensite (SIM), or a combination of these. These alloys fail in a ductile manner via a process of void nucleation, growth, and coalescence. Inherent defects, such as voids, are commonly attributed to poor mechanical properties. In this study
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An enhanced direct method for ductile damage measurement Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-06 M Dastjerdi, F Haji Aboutalebi, MS Sadeghi Nezhad
Damage measurement of materials is a crucial challenge for researchers and engineers in manufacturing industries. In this study, based on the image processing technique, a developed approach for determining the Lemaitre’s ductile damage parameter by the direct measurement method is proposed. For this purpose, first, the micrographs pictures are provided by a scanning electron microscope to attain the
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Brittleness evaluation and damage evolution of sandstone under hydromechanical coupling Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-09-04 Kuan Zhang, Wei Wang, Yajun Cao, Shifan Liu, Xuelei Duan
Investigating the brittleness characteristics and damage evolution of deep rock masses under hydromechanical coupling has important significance. The variations in mechanical properties and brittleness characteristics of sandstone under different confining pressures and pore pressures were studied. Based on the stress threshold evolution and energy conversion analysis of the full stress-strain behavior
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Experimental investigations and micromechanical thermal fatigue models of concrete Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-08-29 Haiyou Peng, Qiang Xie, Chong Wang, Shuai Zhou, J Woody Ju
The vast changes in temperature are what produce thermal fatigue damage to concrete. In this study, concrete specimens in three different categories—C20, C40, and C60—are tested for thermal fatigue at temperatures ranging from 10°C to 80°C in an atmosphere with constant relative humidity. Utilizing ultrasonic nondestructive testing, the elastic modulus of concrete is determined. After thermal cycling
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Behavior monitoring of flax fiber reinforced composites by guided waves Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-08-29 Driss Hana, Beyaoui Moez, Kesentini Zeineb, El Mahi Abderrahim, Bentahar Mourad, Haddar Mohamed, Deba Datta Mandal
The mechanical behavior under static and fatigue loading induced by mechanical forces is examined in this article through the utilization of a non-destructive methodology. However, it is worth noting that the dynamics of elastic waves become notably more intricate when dealing with composite materials. In order to provide a comprehensive description of the green flax/epoxy system, a crucial component
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An improved damage constitutive model for pre-heated rocks under uniaxial compression considering the initial compaction effect and residual strength Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-08-22 Xunjian Hu, Dongdong Ma, Ni Xie, Qizhi Zhu, Haibo Hu, Xiaonan Gong
Enhancing our understanding of the damage evolution in pre-heated rock is essential for safer design practices. Accordingly, a mechanical damage variable that accurately depicts the initial damage recovery process was proposed. Subsequently, a damage constitutive model is developed based on the generalized equivalent strain principle, enabling the identification of the initial nonlinear characteristics
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Statistical damage constitutive model based on energy conversion for rocks Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-08-22 Cheng Hongming, Yang Xiaobin, Lu Jie, Dong Chuanlong, Lan Yongqing
The nonlinearity of the constitutive relation for rocks becomes more prominent with a more complex physical-mechanical environment and mechanical behavior. The accurate establishment of the constitutive relation affects the determination of rock deformation and damage state from physical features. In this study, a novel statistical damage constitutive model for rocks is proposed based on quantified
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Evolution of the damage precursor based on the felicity effect in shale Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-24 PK Gautam, Rishabh Dwivedi, Peeyush Garg, Dipaloke Majumder, Siddhartha Agarwal, Maurice McSaveney, TN Singh
Damage precursors during hydraulic fracturing in shale gas reservoirs may be better understood if the deformation, failure, and acoustic emission (AE) characteristics under cyclic loading are known. Therefore, the purpose of this paper is to investigate the quantitative damage based on the Felicity effect under constant stress lower limit uniaxial cyclic loading-unloading rates (0.5, 1.0, 1.5, 2.0
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A 3D micromechanical model to predict the complete stress-strain relation of microencapsulated self-healing concrete Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-23 Kaihang Han, J Woody Ju, Xiangsheng Chen, Le-Yang Lv, Shuai Zhou, Gang Wei, Zhiguo Zhang, Hongzhi Cui
The research on the concrete structure built with self-healing materials brings inspiration to increase the safety and sustainability of underground structures in the whole life cycle. The utilization of microencapsulated healing agents in self-healing concrete has demonstrated efficacy in the repair of microcracks within concrete structures. Nevertheless, there exists a dearth of effective methodologies
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Cyclic loading and unloading strain equations and damage evolution of gypsum specimens considering damping effects Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-17 Di Wu, Laiwang Jing, Wei Jing, Shaochi Peng
This study aims to establish a strain instanton equation and damage factor evolution law for gypsum specimens by considering damping. First, damping energy is calculated based on the single-degree-of-freedom vibration model, and the instantaneous strain equation is obtained based on the stress balance equation. Second, the dissipation energy is divided into damping and damage energies, and a damage-factor
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A modified Manson-Halford model based on improved WOA for fatigue life prediction under multi-level loading Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-15 Yibo Yang, Li Zou, Xinyu Cao, Xinhua Yang, Yibo Sun
The Manson-Halford (M-H) nonlinear cumulative damage model is widely applied for fatigue life analysis problems under multi-level loading. In this model, the influence of loading sequence on the fatigue life can be better considerer, but the loading interaction effect is ignored. An improved whale optimization algorithm (IWOA) by integrating multiple strategies is proposed. The ability of global search
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Exploring freeze-thaw damage distribution of asphalt mixture through DIC in combination with CT Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-15 Hengzhen Li, Hao Shi, Huining Xu, Yu Tian, Yiqiu Tan, Kaidi Liu
Open graded friction course (OGFC) is highly susceptible to environmental impacts such as load and clogging, due to its rich void structure and exposure to environments. Especially in cold regions, freeze–thaw (F-T) damage is inevitable for OGFC. While the existing analysis methods cannot specifically describe the material's micro-response to load or environment. Therefore, the digital image correlation
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Fracture mechanics approach to minimum reinforcement design of fibre-reinforced and hybrid-reinforced concrete beams Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-06 Alessio Rubino, Federico Accornero, Alberto Carpinteri
The problem of the minimum reinforcement condition in fibre-reinforced and hybrid-reinforced concrete flexural elements is addressed in the framework of fracture mechanics by means of the Updated Bridged Crack Model (UBCM). The model describes the crack propagation process occurring in the critical cross-section of the reinforced member, by assuming the composite as a multiphase material, whereby the
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Behavior of geometrically-similar Basalt FRP bars-reinforced concrete beams under dynamic torsional loads Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-04 Yushuang Lei, Liu Jin, Wenxuan Yu, Xiuli Du
A numerical model utilizing 3D mesoscale simulation methods was developed to investigate the influence of strain rate on the torsional performance of geometrically similar Basalt Fiber Reinforced Polymer bars-reinforced concrete (BFRP-RC) beams, as well as the corresponding size effects. The model incorporates concrete heterogeneity, material strain rate effects, and the dynamic bond-slip relationship
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Strain energy density and entire fracture surface parameters relationship for LCF life prediction of additively manufactured 18Ni300 steel Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-03 Wojciech Macek, Ricardo Branco, Joel de Jesus, José Domingos Costa, Shun-Peng Zhu, Reza Masoudi Nejad, Andrew Gryguć
In this study, the connection between total strain energy density and fracture surface topography is investigated in additively manufactured maraging steel exposed to low-cycle fatigue loading. The specimens were fabricated using laser beam powder bed fusion (LB-PBF) and examined under fully-reversed strain-controlled setup at strain amplitudes scale from 0.3% to 1.0%. The post-mortem fracture surfaces
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Expansion displacement mechanics model of concrete under seawater corrosion Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-01 Tingwei Chen, Jinhan Chen, Jiankang Chen, Yunfeng Lv
In this study, the variation in the expansion displacement of concrete samples with different water-cement ratios under five corrosion solutions (single sulfate salt and coupled sulfate-chloride salt) is explored. The expansion displacement evolution of these concrete samples under sulfate corrosion (single salt corrosion) and sulfate-chloride corrosion (double salt corrosion) is comprehensively examined
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Modeling of viscoelastic deformation and rate-dependent fracture damage in rat bone Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-01 Santosh Reddy Kommidi, Yong-Rak Kim, Do-Gyoon Kim
Bone is a complex hierarchical structural material whose organ-level response is highly influenced by its constitutive behavior at the microstructural level, which can dictate the inelastic nonlinear deformation and fracture within the organ. In the current study, a combined experimental-computational approach was sought to first obtain the local constitutive properties. Later, a multiscale modeling
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Enhancing the acoustic emission technique using fuzzy artificial bee colony-based deep learning for characterizing selective laser melted AlSi10Mg specimens Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-01 Claudia Barile, Caterina Casavola, Dany Katamba Mpoyi, Giovanni Pappalettera, Vimalathithan Paramsamy Kannan
This article presents a classification of Acoustic Emission (AE) signals from AlSi10Mg specimens produced via Selective Laser Melting (SLM). Tensile tests characterized the mechanical properties of specimens printed in different orientations (X, Y, Z, 45°). Initially, a study quantified damage modes based on the stress-strain curve and cumulative AE energy. AE signals for each specimen (X, Y, 45°,
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Phase-field damage simulation of subloop loading in TiNi SMA Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-01 Vladimir Dunić, Ryosuke Matsui, Kohei Takeda, Miroslav Živković
In practical applications, TiNi shape memory alloys (SMAs) exhibit behavior that can pose a challenge with current constitutive models and their implementations in finite element method (FEM) software. TiNi SMA devices typically operate in the forward or reverse martensitic transformation regime, which is known as subloop loading. During such cyclic loading–unloading, the hysteresis stress–strain loop
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Investigation of pore structure evolution and damage characteristics of high temperature rocks subjected to liquid nitrogen cooling shock Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-05-01 Can Du, Jing Bi, Yu Zhao, Chaolin Wang, Wei Tang, Shuailong Lian
Liquid nitrogen (LN2) can be utilized in the development of enhanced geothermal systems, as well as for deep/ultra-deep hydrocarbon reservoir stimulation, fire suppression, and other high-temperature geological projects. It is a crucial issue in the utilization of LN2 to investigate the pore structure evolution, permeability, and damage characteristics of high-temperature rocks under the influence
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A multiscale micromechanical progressive elastic-damage model for cementitious composites featuring superabsorbent polymer (SAP) Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-04-23 Aiqing Xu, Xiaoyan Man, J Woody Ju
A multiscale micromechanics-based progressive damage model is developed to investigate the overall mechanical behavior and the interfacial microcrack evolutions of the cementitious composites featuring superabsorbent polymer (SAP) under uniaxial tension. Elastic properties, progressive damage process, and homogenization procedure of cementitious composites are systematically integrated in this model
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Defect effect on high strain rate compressive behaviors of 3D braided composites Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-04-20 Jinhui Guo, Yousong Xue, Bohong Gu, Baozhong Sun
Defect effects of carbon fiber composites under dynamic impact conditions are important to mechanical behavior design in the aerospace field. Here we report the defect effect on the impact compressive behavior of 3D braided composites at high strain rates from 550/s to 1240/s. The defect effect on damage behavior was observed by high-speed photography and digital image correlation (DIC) technology
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A new unsymmetrical decomposition of the damage variable Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-04-19 George Z Voyiadjis, Peter I Kattan
This work focuses on the dissection of the damage variable within solid materials. The underlying assumption is that damage within a solid primarily stems from the presence of various defects. The conventional approach to breaking down the damage variable into two parts – one attributed to the first defect type and the other to the second defect type – is both explored and expanded in a coherent mathematical
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Experimental and damage model study of layered shale under different moisture contents Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-04-12 Qi Xian-yin, Geng Dian-dong, Xu Ming-zhe, Ke Ting
To investigate the mechanical properties and damage evolution law of layered shale under varying moisture contents, we conducted triaxial compression experiments on rock samples with different bedding angles and moisture levels. This study analyzed the variations in mechanical properties of layered shale under different conditions, and established a predicted model for elastic modulus based on different
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Theoretical and numerical modeling of the effect of damage and dynamic strain aging on the plastic response of C45 steel alloys Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-03-18 Yooseob Song, Jaeheum Yeon, George Z Voyiadjis
A constitutive model for C45 steel alloys is proposed in this work by integrating the effect of damage and a specific phenomenon, so-called dynamic strain aging. For damage modeling, an energy-based isotropic damage model is implemented within a frame of continuum damage mechanics. The total stress is decomposed into athermal and thermal elements. The former includes the additional term for dynamic
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Mechanical impairment characteristics and a novel constitutive model for rocks subjected to uniaxial loading process Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-03-08 Kai Chen, Roberto Cudmani, Andres Alfonso Pena Olarte
The study of constitutive relationship and damage degradation is crucial in solving the stability challenges faced in the rock engineering. In this work, the stress-strain relationships of different type of rocks subjected to uniaxial loading processes are investigated in details. Experimental results demonstrate measurements, such as uniaxial compressive strength (UCS), tangent deformation modulus
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Damage evolution analysis of concrete based on multi-feature acoustic emission and Gaussian mixture model clustering Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-03-05 Bo Yu, Jian Liang, Jiann-Wen Woody Ju
In this work, a novel method for damage evolution analysis of concrete under uniaxial compression is proposed based on the multi-feature acoustic emission (AE) and the Gaussian mixture model (GMM) clustering. The hierarchical clustering algorithm is adopted to select optimal AE parameters, while multiple features of these parameters are generated through the principal component analysis (PCA). Then
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Dynamic constitutive model of saturated saline frozen soil under uniaxial impact loading Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-02-29 Bin Shang, Zhiwu Zhu, Bin Li, Fulai Zhang, Tao Li
The soil matrix, salt crystals, ice crystals, and pore solutions constitute the composite geological material of saturated saline frozen soil. The destruction mode and dynamic constitutive model of saturated saline frozen soil need to be studied because infrastructure construction is increasingly being extended to regions with saturated saline frozen soil. Based on the split Hopkinson pressure bar
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Damage analysis of axially compressed concrete-filled steel tube stub columns based on acoustic emission Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-02-29 Yanjun Chang, Enchao Rong, Wanli Chen, Xiaojun Ke, Kaizhong Xie
Concrete-filled steel tube (CFST) widely applied in engineering structures due to its superior behavior requires monitoring and assessment for damage level. Here, the acoustic emission (AE) technique was used to monitor the fracture process of concrete core in CFST stub columns subjected to axial compression. Test and analyzed results show that the damage process of CFST specimens can be divided into
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Experimental and numerical study on projectile impact damage of EBC-SiC/SiC Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-02-28 Bin Liu, Yancheng Liu, Qiyun Ao, Tengfei Yang, Rui Yan, Yongsheng Liu
The ingested particles or debris will cause high-speed & low-energy impact to the hot end components of aeroengine. Few literature focus on the projectile impact of SiC/SiC with Environmental Barrier Coating(EBC). The impact of 2 mm projectile was specially studied for Si/Yb2Si2O7/Yb2SiO5-SiC/SiC. Gas gun system was used to conduct impact testing at the speed of 3 m/s∼353m/s. The optical microscope
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Elastic moduli prediction of a short fiber composite with interface debonding at fiber ends Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-02-28 Hong-Bo Huang, Zheng-Ming Huang, Yong-Ping Wan
This work deals with the fiber ends debonding-induced elastic moduli degradation of a short fiber reinforced composite (SFRC). The strain fields of the matrix in a representative volume element (RVE) of the SFRC are determined from an imaginary fiber technique. By using the debonding boundary conditions, the debonded modulus of the composite is derived, which is affected by not only the far-field but
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Multiscale prediction of thermal damage for hybrid fibers reinforced cementitious composites blended with fly ash at high temperatures Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-02-26 Kai Cao, Ganggui Liu, Hui Li, Zhiyi Huang
Thermal damage assessment of cementitious composites is essential for evaluating post-fire health conditions of the engineering structures, as well as the basis for reinforcement and repair after fires. Fibers and fly ash are widely used in cementitious composites due to their excellent properties. However, quantifying and predicting the thermal damage of hybrid fibers reinforced cementitious composites
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Multi-stress damage and healing mechanics in quasi-brittle materials: Theoretical overview Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-02-26 Bilal Ahmed, Taehyo Park, Jong-Su Jeon
This work introduces a theoretical framework for continuum damage and healing mechanics by extending stress decomposition to account for tensile, compressive, and shear stresses. In addition to the spectral stress decomposition into tensile and compressive components, we extend the existing stress decomposition method to address shear stresses. The extraction of shear stresses employs two hypotheses
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A rolling contact fatigue life prediction model for bearing steel considering its gradient structure due to cyclic hardening Int. J. Damage Mech. (IF 4.0) Pub Date : 2024-02-26 Yue Zhao, Xi Wang, Rubing Guo, Shouguang Sun
This paper presents a rolling contact fatigue life prediction model for bearing steel. In the initial stage of rolling contact, the gradient structure appears in the subsurface region of bearing steel and the hardness shows a gradient distribution along the contact depth direction due to the roller compaction effect. This indicates that the fatigue resistance of bearing steel varies in the subsurface
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A new damage-based failure criterion for nonlinear behavior of fibrous composite materials Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-05-12 GA Abu-Farsakh, IN Odeh
In the present paper, a novel combined damage-based failure criterion is being proposed for predicting failure stresses in unidirectional fibrous composite laminas or laminates having a nonlinear m...
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Effect of cutting parameters on the microstructure evolution and damage mechanism of 7075-T6 aluminum alloy in micro cutting Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-05-11 Ping Zhang, Zhenyong Lin, Zehua Liu, Junling Liu, Qingqun Mai, Xiujie Yue
This work aims to explore how cutting parameters affect the microstructure evolution and damage mechanism of 7075-T6 aluminum alloy in micro cutting. The effect of cutting parameters on micro cutti...
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Hydro-mechanical coupling behavior and statistical damage constitutive model of deep marble with disturbance Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-05-07 Zhiliang Wang, Shumin Wang, Jianguo Wang
To study the effect of excavation disturbance on hydro-mechanical coupling characteristics of deep marble, both artificially disturbed and intact marble samples were tested under different osmotic ...
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Statistical continuum damage healing mechanics (SCDHM) Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-05-04 Amir Shojaei, George Z Voyiadjis
Damage healing mechanics has been under tremendous development during the past decade in which many constitutive models for different classes of materials have been proposed in the literature. Howe...
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Effect of strong dielectric substances on the damage characteristics of rocks exposed to microwave radiation: Insight from experiments and mechanisms Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-05-03 Feng Gao, Yindong He, Xin Xiong, Keping Zhou, Chun Yang
It has been demonstrated that microwave pretreatment can weaken rocks, reduce tool wear, and improve mechanical rock breaking efficiency. The dielectric properties of rock minerals are a major fact...
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Optimization towards Walker’s equation using intrinsic damage dissipation energy Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-04-25 Haoran Li, Wenqi Li, Zhong Xiang, Yan Peng
In this work, a fatigue stress equation associated with equivalent life is proposed based on the intrinsic damage dissipation energy. This method can be treated as an optimization towards Walker’s ...
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A comprehensive experimental review of strain rate, size effect, creep and confinement in concrete: Part III Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-03-07 Bilal Ahmed, Taehyo Park, George Z Voyiadjis
A comprehensive review of destructive testing techniques to understand concrete behavior is presented in this work. The main objective of this article is to summarize the literature from the last t...
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Experimental study on the evolutionary characteristics of acoustic signals produced by granite damage under uniaxial compression Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-03-02 Guoshao Su, Xianjie Chen, Guikai Sun, Bingrui Chen, Guofu Zhao
Acoustic signals emitted during rock fracture constitute an important tool for rock damage evaluation. To investigate the evolutionary characteristics of acoustic emission (AE), microseismic (MS), ...
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A stress-state-dependent damage criterion for metals with plastic anisotropy Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-03-02 Michael Brünig, Sanjeev Koirala, Steffen Gerke
The paper discusses the effect of stress state and of loading direction on the onset and evolution of damage in anisotropic ductile metals. A series of experiments with uniaxially and biaxially loa...
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A thermodynamic damage model for 3D stress-induced mechanical characteristics and brittle–ductile transition of rock Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-03-01 Zhi Zheng, Hao Su, Guoxiong Mei, Wei Wang, Hong Liu, Qiang Zhang, Yujie Wang
Due to the existence of true three-dimensional high-geostress in deep underground engineering, rock shows different mechanical properties and brittle–ductile behaviours from conventional triaxial s...
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Numerical simulation on hydraulic fracture propagation in laminated shale based on thermo-hydro-mechanical-damage coupling model Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-03-01 Bo Zhang, Zhanqing Qu, Tiankui Guo, Ming Chen, Jiwei Wang, Yuanhang Zhang
The temperature of a deep shale reservoir may reach more than 100°C, and the effect of thermal shock on shale hydraulic fracturing has rarely not been considered in previous studies. Based on mesos...
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Experiment and meso-scale modelling on combined effects of strain rate and specimen size on uniaxial-compressive failures of concrete Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-02-28 Wenxuan Yu, Liu Jin, Xiuli Du
This paper presents experimental and meso-scale modelling studies on the combined effects of strain-rate and specimen size on uniaxial compressive failure behaviour of concrete. A series of uniaxia...
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Numerical analysis of size effect on the deformation behavior and damage evolution mechanism of segmental tunnel lining rings Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-02-16 Xiaofeng Zhao, Kaihang Han, J Woody Ju, Xiangsheng Chen, Weitao Chen, Hao Xiong
This article investigates the size effect of segmental tunnel linings on the deformation behavior and the damage evolution mechanism using the Finite Element Method (FEM). A series of models with d...
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Damage-healing analysis of microencapsulated self-healing concrete subjected to tensile loading using a 2D micromechanical model Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-01-28 Kaihang Han, J Woody Ju, Le-Yang Lv, Zhiguo Yan, Xiangsheng Chen, Yin-fu Jin
Self-healing concrete that employs microencapsulated healing agents has been proven to be an effective method for microcrack repairment in the concrete structure. However, there is a lack of effici...
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Continuum damage mechanics-based finite-volume homogenization of unidirectional elastoplastic fiber-reinforced composites Int. J. Damage Mech. (IF 4.0) Pub Date : 2023-01-16 Wenqiong Tu, Shuaijun Wang, Qiang Chen
The Finite-Volume Direct Averaging Micromechanics (FVDAM) method has been further extended to predict nonlinear behaviors of unidirectional boron/aluminum (B/Al) composites, induced by plastic defo...