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Numerical crashworthiness analysis of 2014 Aluminium- Silicon Carbide Particle (SiCp) foam filled Carbon Fiber-Reinforced Plastic (CFRP) tube under impact loading J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-03-06 Sonika Sahu, Pradeep Kumar, Vivek Kumar Dhimole, Narendra Kumar, Venkata Ravi Vusa, Mohd Zahid Ansari, Chongdu Cho
Aluminium foam and Carbon Fiber Reinforced Plastic (CFRP) are widely used composite materials in automobile industries due to the benefits of lightweight and energy absorption capacity. Therefore, in this study, the numerical crashworthiness analysis of 2014 Aluminium-SiCp (2014AA-SiCp) foam filled in CFRP tube has been performed under impact loading. Quasi-static compression tests have been conducted
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Energy absorption and low-velocity impact responses of the sandwich panels with lattice truss core J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-03-05 Mohammad Ghasemi, Mojtaba Mohammadpour, Fathollah Taheri‐Behrooz
This study investigates the dynamic energy absorption performance of composite sandwich panels with two different configurations of lattice truss core. Two types of core structures were designed and created using polyamide 12 through the selective laser sintering (SLS) additive manufacturing method. These structures, with uniform and graded cell topologies, were created by changing the geometry and
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Lateral instability of sandwich beams under uniform bending J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-02-20 Avi Wurf, Oded Rabinovitch, Yeoshua Frostig
This paper investigates the lateral-torsional instability of soft-core sandwich beams. This physical phenomenon, which has received limited attention in the framework of sandwich structures, is investigated here in the context of fully nonlinear analysis for the first time. The research addresses, quantifies, and explores the lateral-torsional instability with emphasis on the unique features of the
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High-velocity impact performance of sandwich panels with additively manufactured hierarchical honeycomb cores: An experimental and numerical study J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-02-06 Ahsan Ul Haq, Suresh Kumar Reddy Narala
The honeycomb sandwich panel presents a highly promising solution for enhancing ballistic behavior owing to its excellent strength-to-weight ratio and impact resistance. This study focuses on investigating the shock mitigation properties of honeycomb sandwich panels through experimentation and numerical simulation of high-velocity impact tests. Single-scale and double-scale hierarchical honeycomb cores
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Initial performance assessment of 3D printed thin walled structures for spacecraft applications J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-01-29 Adrian Dumitrescu, Scott J I Walker, Federico Romei, Atul Bhaskar
Sandwich panels are the fundamental structural element in a wide range of applications, including in satellite primary structures. While sandwich constructions are very efficient, their complex multi-material assembly leaves room for further optimisation of the core volume and improvement in the integration phase. One key technology that can enable the transition to multifunctional sandwich panel cores
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Transient nonlinear responses of a sandwich plate with micro-cellular auxetic core based on modified strain gradient theory under impact loads J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-01-17 SM Akhavan Alavi, R Ghajar
This study investigates the nonlinear dynamic response of an auxetic sandwich structure under impact load. The core is made of a micro-cellular auxetic structure. The main point of interest is studying the micro-cellular core properties’ effects on the structure’s nonlinear dynamic response. First, the mechanical properties of the micro-cellular auxetic core are introduced based on modified strain
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Dynamic response and energy absorption of aluminum foam sandwich under low-velocity impact J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-01-12 Huihui Wang, Wei Xiao, Mingkai Zhao, Lisha Pang, Jie Jia, Xuding Song
Aluminum foam sandwich (AFS) are widely used in energy absorption because of their light weight and excellent energy dissipation capabilities. In this study, energy absorption, deformation modes, and dynamic response of AFS under low-velocity impact are investigated using experimental and numerical approaches. Dynamic impact tests are performed utilizing a drop hammer impact test on AFS with different
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Energy absorption characteristics of carbon fiber reinforced plastic/aluminum hybrid materials double arrow-head auxetic structure J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-01-11 Yifan Wang, Haohan Zeng, Bingbing Nie, Fang Jia, Qiang Gao
This study aimed to improve the energy absorption capabilities of auxetic structures, which are used in sandwich structures in engineering. To achieve this, the study used a combination of CFRP and aluminum materials in a hybrid double arrow-head auxetic (DAHA) structure. This paper conducted experiments and simulations to analyze the mechanical properties of the hybrid DAHA structures and found that
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Dirac cones in three-layered plates J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-01-11 S.V. Kuznetsov
The proper Dirac-like cones are observed in dispersion portraits of guided waves propagating in isotropic three-layered traction-free plates. It is revealed that if both layers have equal Poisson’s ratios and satisfy Wiechert condition, the Dirac-like cones appear regardless of the Poisson’s ratio value. This phenomenon opens a new approach for the creation of the layered plates possessing Dirac-like
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A new modelling method for open cell foam structure based on centroidal and capacity constraint power diagram J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-01-05 Xin Zhou, Jian Yang, Liangliang Shen, Ximing Xie, Jianbo Tang, Gang Zhao, Peifeng Feng, Shuxin Li, Zhenyao Chen, Nai Yeen Gavin Lai, Jian Xu
To efficiently establish a finite element model that is highly compatible with the intricate microstructure of foam materials, this study carries out simulation and experimental investigations into open cell foams and explores their compression behavior assuming isotropy. Using an in-house algorithm, we optimize the traditional power diagram model, which is widely used in foam finite element simulation
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Development and evaluation of the sandwich edgewise compression after impact test J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2024-01-03 Bradley K. Kuramoto, Marcus L. Stanfield, Daniel O. Adams
A compression after impact test method has been developed to assess the damage tolerance of sandwich structures under edgewise compressive loading. This test method, recently standardized as ASTM D8287, was designed to test specimens that have been impact damaged per ASTM D7766. The fixture design utilizes end loading with top and bottom edge supports to prevent end-brooming and out-of-plane rotation
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A sequential mixed-integer programming method for concurrent optimization of core topology and face sheet thickness of a sandwich beam J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-05-13 Johan Larsson, Peter Göransson, Per Wennhage
A method is proposed that allows for the concurrent optimization of core topology and face sheet thickness of a sandwich beam under compliance constraints. The problem is solved using a novel mixed...
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The impact response and failure mechanism of sandwich plates with M-type foldcore under low-velocity impact J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-05-12 Yunfei Deng, Yuan Yin, Huapeng Wu, Chunping Zhou, Xianzhi Zeng
Foldcore sandwich structure has promising applications for load-bearing, and in this study, M-type foldcore sandwiches are prepared through a molding and pressing process with fiberglass. To be spe...
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Sandwich Structures With Bio-Inspired Viscoelastic Optimized Suture Face Sheets for Blast Mitigation J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-04-28 Manish Suresh Raut, Mital Limjibhai Patel, Harshit Verma, S Gopalakrishnan, Gopalan Jagadeesh
In this paper, the performance of a novel bio-inspired face sheet in mitigating the effects of blast loading is investigated. The new design of the face sheet consists of an optimized bio-inspired ...
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Impact response of a sandwich with a foam aluminum core enhanced by a ceramic tile: An experimental study J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-04-20 Jianwei Ren, Minqian Sun, Yilai Zhou, Tao Wang, Zhenyu Zhao
This research proposes using a hybrid core consisting of foam metal and a ceramic tile to enhance the impact resistance of the sandwich construction. We assess the impact response of such an enhanc...
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Bending response and failure characteristics of nomex honeycomb sandwich with continuous composite facesheet encasement J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-04-20 Jianwei Ren, Yilai Zhou, Wenbo Gao
In conventional sandwich construction, the core component is typically made of Nomex honeycomb and sandwiched between two facesheets, a lower and an upper facesheet. To enhance the load-bearing cap...
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Mechanical behaviour of fabric-reinforced plastic sandwich structures: A state-of-the-art review J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-04-18 Norman Osa-uwagboe, Vadim V Silberschimdt, Adedeji Aremi, Emrah Demirci
The use of fibre-reinforced plastics (FRPs) in sandwich structures increased for various industrial applications thanks to their strength-to-weight ratio which provides designers with advanced opti...
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Mechanical performance of sandwich materials with reduced environmental impact for marine structures J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-04-17 Alban Robin, Peter Davies, Mael Arhant, Sebastian Le Jeune, Nicolas Lacotte, Eliaz Morineau, Fanny Ioos, Pascal Dourlen, Raphael Cairo
Glass fibre reinforced composite facings on PVC (poly(vinyl chloride)) foam cores are widely used sandwich materials in boat structures, but life cycle analysis suggests that alternative materials ...
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A homogenization method for natural frequencies and damping analysis of composite pyramidal lattice truss sandwich structures based on representative volume elements J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-04-17 Chengyu Guan, Zi-Jia Tang, Fei Zhao, Zhiyong Yang, Huimin Li
A homogenization method for the vibration analysis of periodic sandwich panels is presented. Periodic boundary conditions are applied to a representative volume element (RVE) of the structures. The...
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The compressive performances of 3D-printed micron-size corrugated sandwich structures J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-04-07 Lijun Ji, Weilin Liu, Wensheng Gong, Xiang Qin, Lingling Liu, Liping Luo
Micron-scale grid-shaped, V-shaped and U-shaped corrugated sandwich structures are fabricated by 3D printing technology and present different mechanical properties from those made by traditional me...
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Influence of face sheet thickness on flexural strength characteristics of carbon/epoxy/Nomex honeycomb sandwich panels J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-03-06 Kakur Naresh, Ruzanna Aziz Alia, Wesley J. Cantwell, Rehan Umer, Kamran Ahmed Khan
This study presents the findings of an investigation into the effect of varying the thickness of a carbon/epoxy face sheet of a Nomex honeycomb sandwich panel on its the flexural properties. The th...
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Out-of-plane compression mechanism of a novel hierarchical sandwich honeycomb core J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-02-24 Mihaela Iftimiciuc, Arne Derluyn, Jochen Pflug, Dirk Vandepitte
Honeycomb cores are used extensively in different sectors of industry to build advanced lightweight structures which take advantage of high stiffness-to-weight and strength-to-weight ratios. To fur...
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Crushable polymer foam behavior at cold temperatures J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-02-24 Michelle S Hoo Fatt, Anudeep Reddy Vedire, Akshay Kumar Pakala
Experiments were conducted to characterize and develop predictive constitutive equations for the elastic-plastic, post-yield hysteresis behavior of Divinycell H100 foam at temperatures as low as −4...
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Disbond detection of honeycomb sandwich structure through laser ultrasonics using signal energy map and local cross-correlation J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-02-22 Zeyu Dong, Weikun Chen, Osamu Saito, Yoji Okabe
Detecting disbonds in honeycomb sandwich structures using ultrasonics is challenging due to the complex wave propagation. This paper investigates the method for disbond quantification in honeycomb ...
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Investigation of viscoelastic properties in composite sandwich panels subjected to low-velocity impact: Experimental and numerical approaches J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-02-20 Milad Hosseinkhani, Hamed Ghavami, Mojtaba Haghighi-Yazdi, Mahmoud Mosavi Mashhadi, Majid Safarabadi
This study investigates the effect of viscoelastic properties in the numerical modeling of foam-filled sandwich panels when their composite facesheets are exposed to low-velocity impact loading. A ...
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Flexural behavior and microstructural material properties of sandwich foam core under arctic temperature conditions J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-02-13 Mikayla Aowad, Arnob Banik, Chao Zhang, Isaiah Kaiser, Mahfujul Haque Khan, Ana Clecia Alves Almeida, Daria Lazarenko, Fardin Khabaz, Kwek-Tze Tan
This study investigates three types of foam core materials used in composite sandwich structures at various densities: H60, H100, F50, F90, PN115, PN200 and PN250. Three-point bending test is condu...
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The combined effect of temperature and seawater on the compression properties of carbon fiber vinyl ester composites for sandwich structures J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-02-10 Vivek Chawla, Dayakar Penumadu
For naval applications, composite sandwich structures are of significant interest, and are often manufactured using thin (2 to 4 mm) composite facings made from carbon or glass fiber reinforcement,...
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Dynamic stability of sandwich panels subjected to periodic axial loads J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-01-24 Zhangxian Yuan, George A Kardomateas
This paper presents an analysis for the dynamic stability of sandwich beams/wide plates subjected to periodic axial loads. The formulation of the problem is done by use of the Extended High-order S...
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An experimental methodology to study impulsive hydrodynamic loading of air-backed composite plates J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-01-16 Peng Zhang, Yichen Guo, Maurizio Porfiri
Sandwich composites in marine vessels are frequently exposed to impulsive hydrodynamic loading during operation in extreme environments. The response of sandwich composites to impulsive hydrodynami...
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Fabrication and compressive performance of novel lightweight C/SiC honeycomb for ultrahigh stability structures J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-01-12 Zhongwei Zhang, Weijie Li, Yuping Yang, Hao Wu
As for high resolution satellite application field, novel C/SiC honeycomb sandwich structure is the first to propose and develop on account of such many attractive properties as excellent ultrahigh...
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Experimental and finite element analyses of a 3D printed sandwich with an auxetic or non-auxetic core J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-01-09 Anis Hamrouni, Jean-Luc Rebiere, Abderrahim El Mahi, Moez Beyaoui, Mohamed Haddar
This work presents the results of experimental and numerical analyses of the static properties of architectural cores and the dynamic behavior of sandwich structures made with an auxetic or non-aux...
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Development and evaluation of the sandwich open-hole flexure test J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-01-07 Marcus L Stanfield, Bradley Kuramoto, Daniel O Adams
An open-hole flexure test method has been developed to assess the notch sensitivity of sandwich composites under flexural loading. This test method, recently standardized as ASTM D8453, utilizes th...
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On the large amplitude vibration of shallow sandwich shells with FG-GNPRP core considering initial geometric imperfections J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2023-01-03 Mohammed Shakir, Mohammad Talha, David Hui, Wei Gao
The present study investigates the influence of initial geometric imperfections on large amplitude vibration of shallow sandwich shells with functionally graded graphene nanoplatelets reinforced po...
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Composites sandwich structures certification: A case study J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-12-18 Francisco K Arakaki
The motivation of this work is to show a case study represented by a test article in tapered sandwich structure with a mid-ramp region in order to reduce certification cost of the full-scale struct...
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Numerical investigation of the mechanical behavior of the vertical stabilizer leading edge with wavy honeycomb sandwich structure under bird strike J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-12-13 Alparslan Solak, Birgül Aşçıoğlu Temiztaş, Berna Bolat
This study proposes a honeycomb with a sine waveform to increase the impact resistance against bird strike on the vertical stabilizer leading edge. A 2-stage comparison was made using the experimen...
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The compressive mechanical properties of honeycomb plates and beetle elytron plates with different foam densities and height-to-thickness ratios J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-11-23 Chaochao He, Yalan Liu, Jinxiang Chen, Ning Hao, Zhensheng Guo
To investigate a new type of bionic energy-saving sandwich plate—the beetle elytron plate (BEP), the compressive mechanical properties of short basalt fiber reinforced epoxy resin composite BEPs an...
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Deflection assessment of prestressed steel-concrete–steel sandwich panel: experiment and numerical simulation J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-11-18 Meng Yan, Lianguang Wang, Bailing Chen, Haiyang Gao
A steel-concrete-steel sandwich panel with prestressed reinforcement was developed, named prestressed steel-concrete–steel sandwich panel. Nine specimens where the loading mode, top steel plate thi...
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A convex-deformable sandwich panel for mobile devices J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-11-16 Yoon Chang Jeong, Eun-Byeol Park, Kiju Kang
Panels with monolithic auxetic micro-architectures are capable of bending into convex shapes. However, the thickness of panels with these micro-architectures (such as re-entrant trusses) is current...
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Advances in naval composite and sandwich structures for blast and implosion mitigations J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-11-14 Piyush Wanchoo, Shyamal Kishore, Akash Pandey, Arun Shukla
Naval structures owing to their operational conditions get exposed to extreme loadings and environments. Along with blasts generated through explosion events, enclosed naval structures are also vul...
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The effect of thickness on the transverse shear strength of nomex honeycomb cores J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-11-08 Mark A Battley, Samuel J Stone, Tom D Allen
Honeycomb materials are commonly used as cores for sandwich panels. While empirical evidence exists showing that the transverse shear strength of a honeycomb core is affected by its thickness, the ...
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Multi bandgaps design of sandwich metamaterial plate with embedded membrane-type resonators J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-11-04 Jinqiang Li, Yao Zhang, Xinlei Fan, Fengming Li
A metamaterial plate with multi bandgaps is proposed for vibration suppression by integrating membrane-mass structures that can be used as locally resonant metastructure into a honeycomb sandwich s...
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High-order torsion analysis of sandwich beams of rectangular cross-section J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-10-31 Avi Wurf, Oded Rabinovitch, Yeoshua Frostig
The structural response of soft-core sandwich beams of rectangular cross-section subjected to torsion is investigated. The paper uses the concepts of the extended high-order sandwich panel theory a...
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Experimental and numerical analysis of mechanical characteristics of fused deposition processed honeycomb fabricated from PLA or ULTEM 9085 J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-10-28 I Derevianko, B Uspensky, K Avramov, A Salenko, K Maksymenko-Sheiko
Approach for mechanical characteristic experimental analysis of honeycomb core manufactured by fused deposition modelling is suggested. Experimental analyses of shear and tension of the honeycombs ...
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Compressive properties characterization of PBO paper honeycomb core constituent material and relationship with honeycomb behaviors J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-10-02 Ziqi Huang, Jin Long, Yi Wang, Jian Hu
Poly (p-phenylene benzoisoxazole) (abbreviation: PBO) paper honeycomb core (PPHC) is gradually being used as a novel honeycomb material for lightweight structures in high temperature environment. H...
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A study on the damage tolerance of durable redundant composite sandwich joints J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-09-28 Vinay K Goyal, Eric C Lundgren, Dhruv N Patel
A patented Durable Redundant Joint (DRJ) concept featuring multiple adhesive load-paths, via a novel composite preform insert, is being considered for joining composite sandwich panel segments. App...
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Design analysis and testing of flat sandwich panels under bird strike J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-09-23 Radoslaw Konik, Christos Kassapoglou, Dean Nguyen
A non-linear energy-based analytical approach to design flat sandwich panels resistant to bird strike is presented. The approach is then complemented by numerical simulation in Abaqus using smooth ...
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Novel design of honeycomb hybrid sandwich structures under air-blast J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-09-19 Murlidhar Patel, Shivdayal Patel
In this study, dynamic explicit analysis was performed to examine the air-blast performance of various hybrid sandwich designs in terms of face plate deflections and energy dissipation capacity und...
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Bionic inspired honeycomb structures and multi-objective optimization for variable graded layers J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-09-16 Xiaoqiang Niu, Fengxiang Xu, Zhen Zou
Bionic and gradient designs offer promising applications in honeycomb structures. The intersection unit of the beetle elytra is extracted as to enhance regular hexagonal honeycomb (RHH), and severa...
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Flexural behavior of sandwich panels with 3D printed cellular cores and aluminum face sheets under quasi-static loading J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-09-15 S. Chahardoli
In this study, sandwich panels are presented with polylactic acid (PLA) core made through the FDM method. The face sheets of the panels are made out of aluminum 3105 alloy. The mechanical propertie...
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Infusible thermoplastic resin based sandwich structures for wind blade applications and the influence of scrim on facesheet to core interface debonding J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-09-06 Zachariah Arwood, Stephen Young, Dayakar Penumadu
Infusible thermoplastic Elium® family of resins from Arkema have garnered much attention in recent years as a possible replacement for thermoset resins in laminate and sandwich composite manufactur...
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Analysys and optimization of an end double-lap bonded joint for GFRP composite sandwich panels J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-09-02 Giuseppe Marannano, Bernardo Zuccarello
Although the best configuration of the joints used to connect a common GFRP sandwich panel with the main structures is the adhesively bonded one, that permit high static and fatigue performances as...
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Clamping method and mechanical properties of aluminum honeycomb cylindrical curved plates under radial compression J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-29 Yiheng Song, Qinyu Lin, Jinxiang Chen
To develop a new type of bionic curved sandwich plate, it is necessary to first develop experimental methods and evaluation criteria for curved plates. Thus, this paper focuses on an aluminum cylin...
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A nondestructive approach to predict buckling load of composite lattice-core sandwich conical shells based on vibration correlation technique J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-28 Mehdi Zarei, Gholamhossein H Rahimi
In this paper the vibration correlation technique (VCT) has been used as a nondestructive method for predicting the buckling load of the composite lattice-core sandwich conical shells. This techniq...
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Analysis methodology for the assessment of unvented honeycomb sandwich structures subject to in-plane and pressure loads J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-25 Sean P. Engelstad, Zhi M Chen, Vinay K. Goyal
As an aircraft or spacecraft ascends, the atmospheric pressure drops. If the internal pressure is not released, a pressure differential develops on the facesheet. With an in-plane load from vehicle...
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Numerical modeling of flatwise energy absorption behavior of 3D woven honeycomb composites with different cell structures J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-20 Lekhani Tripathi, Sameer K Behera, Bijoya K Behera
Numerical simulation along with experimental validation are used to investigate the flatwise compression behavior in the out-of-plane direction of several 3D woven honeycomb composites with varied ...
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Sandwich structure with negative Poisson’s ratio of periodic rectangular tube: Mechanical properties and energy absorption J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-17 Xin Liu, Peiyan Yang, Ye Yuan, Jia Qu
Due to its unique deformation form, Negative Poisson’s ratio sandwich structure has excellent energy absorption, but the low load capacity limits its engineering applications. In this paper, we design a new negative Poisson’s ratio rectangular tube periodic sandwich structure. There are many beams in this structure which appear plastic hinges when compressed. After further compression, the rectangular
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Characterization and repair of core gap manufacturing defects for wind turbine blades J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-14 Paul Murdy, Scott Hughes, David Barnes
Various wind turbine blade components, such as shear webs and skins, commonly use fiber-reinforced composite sandwich structures with a core material like balsa or foam. During manufacturing, core gap defects may result from the misalignment of adjacent foam or balsa core sheets in the blade mold. It is important to understand the influence that core gaps have on the structural integrity of wind turbine
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Development and evaluation of the sandwich open-hole compression test J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-11 Marcus L Stanfield, Bradley Kuramoto, Daniel O Adams
An open-hole compression test method has been developed to assess the notch sensitivity of sandwich composites under compression loading. This test method, in the process of being standardized by ASTM International, utilizes end loading as well as knife-edge side supports to provide out-of-plane restraint to specimen buckling. Finite element analyses focused on identifying a sandwich specimen geometry
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Erratum to ‘Experimental and numerical investigation on the buckling of 3D printed sandwich structure with lattice core” J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-08
Cao Y, Geng X, Han H, Lu Y, Wang J, Zhao C. Experimental and numerical investigation on the buckling of 3D printed sandwich structure with lattice core. Journal of Sandwich Structures & Materials. 2022 Jun 21. DOI: 10.1177/10996362221108974.
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Characterization of micro-sandwich structures via direct ink writing epoxy based cores J. Sandw. Struct. Mater. (IF 3.9) Pub Date : 2022-08-06 Zane J Smith, Demiana R Barsoum, Zachariah L Arwood, Dayakar Penumadu, Rigoberto C Advincula
Sandwich structured (SS) composites demonstrate considerable flexural stiffness and high strength-to-weight ratios and can be tailored as functional materials. Historically they have been constrained to specific material types and geometry due to limitations in manufacturing methods. However, employing additive manufacturing (AM), specifically direct ink writing (DIW), can provide an alternative method