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A predictive model for fluid-saturated, brittle granular materials during high-velocity impact events J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-16 Aaron S. Baumgarten, Justin Moreno, Brett Kuwik, Sohanjit Ghosh, Ryan Hurley, K.T. Ramesh
Granular materials – aggregates of many discrete, disconnected solid particles – are ubiquitous in natural and industrial settings. Predictive models for their behavior have wide ranging applications, e.g. in defense, mining, construction, pharmaceuticals, and the exploration of planetary surfaces. In many of these applications, granular materials mix and interact with liquids and gases, changing their
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Interfacial failure behavior of Thermal Barrier Coatings (TBCs) at high temperatures: An in-situ indentation study based on X-ray imaging J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-14 Sangyu Luo, Ruizhe Huang, Haoran Bai, Peng Jiang, Zhaoliang Qu, Daining Fang
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Energy quantification framework for underwater explosive loading into PVC foam cladded composite plates J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-10 Piyush Wanchoo, Akash Pandey, Matthew Leger, James LeBlanc, Arun Shukla
This paper presents a novel approach for analyzing the effects of near-field underwater blast loading on composite marine structures. The operational requirements of these structures often expose them to blast or shock loading, which can lead to significant damage. The study focuses on the propagation of spherical blast waves and the subsequent secondary bubble collapse pulse that affects the structure
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A novel continuum dislocation density field-based crystal plasticity theory J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-09 Qichao Ruan, Esteban P. Busso, Zhangchen Fan, Chao Ling, Dongfeng Li
In this work, a novel dislocation density field-based crystal plasticity formulation, that incorporates up-scaled continuum dislocation density fields to represent all possible characters of the dislocation density, is presented. The continuum dislocation field theory, formulated assuming large strain kinematics, is based on an all-dislocation concept, whereby individual dislocation density types are
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Modeling shortest paths in polymeric networks using spatial branching processes J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-05 Zhenyuan Zhang, Shaswat Mohanty, Jose Blanchet, Wei Cai
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Molecular simulation-guided and physics-informed constitutive modeling of highly stretchable hydrogels with dynamic ionic bonds J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-05 Hua Yang, Danming Zhong, Ping Rao, Shaoxing Qu
Adaptive polymers are being designed with dynamic molecular bonds or chain interactions to respond with external stimuli with unparalleled mechanical properties and multifunctionality. An elegant example is to substantially enhance the stretchability and toughness of hydrogels through the use of ionic bond interactions. To assist the materials design and applications, a predictive theory is in high
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Multiscale modeling of dislocation-mediated plasticity of refractory high entropy alloys J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-05 Feng Zhao, Wenbin Liu, Xin Yi, Yin Zhang, Huiling Duan
Refractory high entropy alloys (RHEAs) have drawn growing attention due to their remarkable strength retention at high temperatures. Understanding dislocation mobility is vital for optimizing high-temperature properties and ambient temperature ductility of RHEAs. Nevertheless, fundamental questions persist regarding the variability of dislocation motion in the rugged energy landscape and the effective
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A machine learning interatomic potential for high entropy alloys J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-05 Lianping Wu, Teng Li
High entropy alloys (HEAs) possess a vast compositional space, providing exciting prospects for tailoring material properties yet also presenting challenges in their rational design. Efficiently achieving a well-designed HEA often necessitates the aid of atomistic simulations, which rely on the availability of high-quality interatomic potentials. However, such potentials for most HEA systems are missing
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High-cycle shakedown, ratcheting and liquefaction behavior of anisotropic granular material with fabric evolution: Experiments and constitutive modelling J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-04-04 Yi Hong, Xuetao Wang, Lizhong Wang, Guozheng Kang, Zhiwei Gao
Although the mechanical response of granular materials strongly depends on the interplay between their anisotropic internal structure (fabric) and loading direction, such coupling is not explicitly considered in existing high-cycle experimental datasets and models. High-cycle experiments on granular specimens specifically prepared with various fabric orientations are presented. It is found that the
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On the coupling of Hamilton's principle and thermodynamic extremal principles J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-30 Klaus Hackl, Jiří Svoboda, Franz Dieter Fischer
Extremal principles can generally be divided into two rather distinct classes. There are, on the one hand side, formulations based on the Lagrangian or Hamiltonian mechanics, respectively, dealing with time dependent problems, but essentially resting on conservation of energy and thus being not applicable to dissipative systems in a consistent way. On the other hand, there are formulations based essentially
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Equilibrium analysis of surface-constrained elastic rods: Unveiling contact and internal forces through local geometry J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-28 Meng Wang, Xin Yi
Confinement scenarios of thin elastic rods are prevalent in both natural and engineered systems. The accurate quantification of the mechanical interplay between confined rods and their confining surfaces remains a formidable challenge, primarily due to the intricate nonlinear nature of thin rods and their contact with surfaces. Here, we present a theoretical framework designed to characterize equilibrium
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Predicting the post-bifurcated patterns of architectured materials using group-theoretic tools J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-28 Rachel Azulay, Christelle Combescure
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Towards design of a gradient locally resonant acoustic metasurface for negative reflection J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-27 X. Kuci, M.G.D. Geers, V.G. Kouznetsova
Gradient acoustic metasurfaces are a class of subwavelength metamaterials that provide unprecedented opportunities to control the direction of reflected and refracted waves, including negative angles in accordance with the diffraction theory and generalized law of reflection. This opens new possibilities in designing metasurfaces for many practical applications in wave engineering. In this work, locally
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Large strain micromechanics of thermoplastic elastomers with random microstructures J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-27 Hansohl Cho, Jaehee Lee, Jehoon Moon, Elmar Pöselt, Pieter J. in’t Veld, Gregory C. Rutledge, Mary C. Boyce
Thermoplastic polyurethanes (TPU) are block copolymeric materials composed of plastomeric “hard” and elastomeric “soft” domains, by which they exhibit highly resilient yet dissipative large deformation features depending on volume fractions and microstructures of the two distinct domains. Here, we develop a new methodology to explore the microscopic deformation mechanisms in TPU materials with highly
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Inverse design of three-dimensional multicellular biobots with target functions J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-27 Hui-Kai Zhang, Bo-Wen Xu, Zi-Yao Jia, Bo Li, Xi-Qiao Feng
Hybrid living biobots consisting of active cells hold promise for significant applications as, for example, intelligent devices in medical engineering and organisms with specific functions in synthetic biology. However, the design and creation of living biobots with various cells remain a challenge. In this paper, we propose a three-dimensional inverse optimization strategy based on the pixel topology
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Mechanistic understanding of microstructural effects on the thermal fatigue resistance of solder joints J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-27 Yilun Xu, Jingwei Xian, Richard J. Coyle, Christopher M. Gourlay, Fionn P.E. Dunne
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Cosserat-phase-field modeling of grain nucleation in plastically deformed single crystals J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-27 Flavien Ghiglione, Anna Ask, Kais Ammar, Benoît Appolaire, Samuel Forest
Thermomechanical processing of crystalline materials induces microstructural evolution such as grain nucleation and growth. In the numerical simulation of these processes, grain nucleation is generally treated as an additional step in which circular or spherical grains are added in regions where a critical dislocation density, stress or strain are reached. In this paper, systematic finite element simulations
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Investigating the ductile to brittle transition phenomenon in binary Fe-Ni systems using molecular dynamics simulation J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-27 Rakesh Kumar Barik, Tellakula Jayasree, Sankalp Biswal, Abhijit Ghosh, Debalay Chakrabarti
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A local variational principle for fracture J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-26 Christopher J. Larsen
The seminal paper of Francfort and Marigo (1998) introduced a variational formulation for Griffith fracture () that has resulted in substantial theoretical and practical progress in modeling and simulating fracture. In particular, it led to the phase-field approximation proposed in Bourdin et al. (2000), which has been widely implemented. However, the formulation in Francfort and Marigo (1998) is known
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Top-down constitutive modelling to capture nanoscale shear localization J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-23 Jici Wen, Yujie Wei
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Propagation of solitary waves in origami-inspired metamaterials J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-23 Quan Zhang, Stephan Rudykh
We propose a design strategy for creating origami-like mechanical metamaterials with diverse non-linear mechanical properties and capable of remote actuation. The proposed triangulated cylindrical origami (TCO)-inspired metamaterials enable the highly desirable strain-softening/hardening and snap-through behaviors via a multi-material and highly deformable hinge design. Moreover, we couple these novel
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Reduced membrane model for liquid crystal polymer networks: Asymptotics and computation J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-20 Lucas Bouck, Ricardo H. Nochetto, Shuo Yang
We examine a reduced membrane model of liquid crystal polymer networks (LCNs) via asymptotics and computation. This model requires solving a minimization problem for a non-convex stretching energy. We show a formal asymptotic derivation of the membrane model from rubber elasticity. We construct approximate solutions with point defects. We design a finite element method with regularization, and propose
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Micromechanical analyses on bending of polysynthetically twinned single crystal of titanium aluminide J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-20 Z. Wang, W.H. Wong, T.F. Guo
Micromechanical bending analyses CPFEM of polysynthetically twinned (PST) single crystal of TiAl composing of one -phase lamella and six –phase lamellae have been performed. The results have demonstrated that a decrease in the domain size aspect ratio or an increase in the volume fraction of phase have an effect of increasing the induced bending moment and consequently bending resistance under both
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Incremental variational approach to gradient damage coupled with poroelasticity of saturated media J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-20 Xiao-Dong Zhang, Long Cheng, Djimédo Kondo, Albert Giraud
In this study, we aim at investigating the coupling between poroelasticity (including the fluid flow) and gradient damage phenomena in saturated porous media. To this end, we first extend the thermodynamics-based Biot–Coussy theory of poroelasticity in order to incorporate gradient damage processes. Taking advantage of this framework, we establish a variational formulation for the proposed model, expressed
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Experimental assessment of the eigenstress state in two-ply yarns and its effect on tensile properties J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-20 Claudio Boni, Vincenzo Andrea Muratore, Gianni Royer-Carfagni
Propaedeutical to a better understanding of the mechanics of cables, with potential applications in material science and biology, tensile tests were performed on two-ply yarns made of rubber rods, manufactured by transforming the twist on two adjacent straight rods into tortuosity for the resulting double-helix shape. Modeling of the yarn as a pair of Kirchhoff rods in reciprocal contact, fails to
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Optimizing nanoporous metallic actuators through multiscale calculations and machine learning J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-19 Sheng Sun, Menghuan Wang, Hanqing Jiang, Ying Zhang, Hang Qiao, Tong-Yi Zhang
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Effect of interphase layer on matrix cracking in fiber reinforced ceramic matrix composites J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-18 Xiaochuan Niu, Yong Ma, Shu Guo, Lu Li, Ruixiao Zheng, Jinwu Xiang, Yuli Chen
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Coupling between viscoelasticity and soft elasticity in main-chain nematic Liquid Crystal Elastomers J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-16 L. Rezaei, G. Scalet, M. Peigney, A. Azoug
Liquid crystal elastomers (LCEs) are a class of smart elastomers exhibiting unusual mechanical behavior, including large energy dissipation and soft elasticity under uniaxial tensile loading. LCEs are composed of liquid crystal molecules, called mesogens, linked by a network of polymer chains. During deformation, the mesogens orient in the direction of the loading, leading to soft elasticity, which
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Nonlinear optimization for compact representation of orientation distributions based on generalized spherical harmonics J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-16 Russell E. Marki, Marko Knezevic
An orientation distribution is a necessary input in any crystal plasticity simulation. The computational time involved in crystal plasticity simulations scales linearly with the number of crystal orientations in the input distributions. Reducing the number of crystal orientations in representing the input orientation distributions quantitatively is a critical and necessary requirement for performing
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Multiscale Thermodynamics-Informed Neural Networks (MuTINN) towards fast and frugal inelastic computation of woven composite structures J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-16 M. El Fallaki Idrissi, F. Praud, F. Meraghni, F. Chinesta, G. Chatzigeorgiou
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Surface wrinkling of a film coated to a graded substrate J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-16 Rui-Cheng Liu, Yang Liu, Alain Goriely
We study the surface wrinkling of a stiff thin elastic film bonded to a compliant graded elastic substrate subject to compressive stress generated either by compression or growth of the bilayer. Our aim is to clarify the influence of the modulus gradient on the onset and surface pattern in this bilayer. Within the framework of finite elasticity, an exact bifurcation condition is obtained using the
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Curvature controls beading in soft coated elastic cylinders: Finite wavemode instability and localized modulations J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-15 Matteo Taffetani, Matthew G. Hennessy
Axisymmetric beading instabilities in soft, elongated cylinders have been observed in a plethora of scenarios, ranging from cellular nanotunnels and nerves in biology to swollen cylinders and electrospun fibers in polymer physics. One of the common geometrical features that can be seen in these systems is the finite wavelength of the emerging pattern. However, modelling studies often predict that the
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Computational multiscale modelling of material interfaces in electrical conductors J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-13 Tobias Kaiser, Niklas von der Höh, Andreas Menzel
Material interfaces occur at various length scales and may exhibit significantly different properties than the surrounding bulk. Motivated by their importance for electrical engineering applications such as wire bonds and electrically conductive adhesives, the focus of the present work is on material interfaces in electrical conductors. In order to approximate the physical interphase (of finite thickness)
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Configurational force method enables fracture assessment in soft materials J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-12 Miguel Angel Moreno-Mateos, Paul Steinmann
Configurational mechanics offers a framework for quantifying the tendency of defects to alter the material configuration. When applied to fracture mechanics, configurational forces can be used to quantify the propensity of cracks to propagate. An alternative, well-established approach involves analytical solutions for crack tip displacement fields. However, these solutions typically apply to a limited
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Mechanobiological tortuosity of blood vessels with stress-modulated growth and remodeling J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-11 Wei-Zhi Huang, Bo Li, Xi-Qiao Feng
The stability of blood vessels is essential for maintaining their functions, while severe blood vessel tortuosity leads to various clinical complications. The growth and remodeling of blood vessels, which are regulated by mechanical and biochemical cues, cause residual stresses that affect vessel stability. In this paper, we combine theory and simulations to study the mechanobiological behavior of
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Thermal cracking: Clarifying the effects of phases, voids and grains through characterisation and crystal plasticity modelling J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-11 Wei Wang, Ruiqiang Zhang, Amir A Shirzadi, Daniel S Balint, Lee Aucott, Jun Jiang
Thermally-induced cracking typically occurs during the cooling stage of various manufacturing processes, and is commonly seen in multiphase or the joints of dissimilar materials due to mismatch in their thermo-mechanical properties, such as thermal expansion, elastic-plastic deformation and, in some cases, phase transformation. However, the underlying cracking mechanism associated with local microstructure
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Fully optimized second-order estimates for the macroscopic behavior and field statistics of particle-reinforced viscoplastic composites J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-07 Christoph Kammer, Pedro Ponte Castañeda
This paper is concerned with the characterization of the macroscopic behavior and statistics for the distribution of the stress and strain-rate fields in composites consisting of random and isotropic suspensions of rigid spherical particles in power-law viscoplastic materials. For this purpose, use is made of the Fully Optimized Second-Order (FOSO) homogenization method (Ponte Castañeda, 2016) in combination
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The dominating dimensionless numbers of an elastic-plastic thin plate under dynamic loading J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-04 Xiaorun Huang, Yongjie Feng, Mu Wang, Xinming Qiu
The response of an elastic-plastic thin plate under dynamic loading cannot be solved theoretically since both geometrical and material nonlinearities are involved and also highly coupled. Obviously, the response will be affected by material properties, geometries, and loads, whose effects are usually studied separately. In order to avoid repeated investigations and save costs, identifying the combined
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Mapping deformation and dissipation during fracture of soft viscoelastic solid J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-02 Yuan Qi, Xueyu Li, Sairam Pamulaparthi Venkata, Xingwei Yang, Tao Lin Sun, Chung-Yuen Hui, Jian Ping Gong, Rong Long
Energy dissipation around a propagating crack is the primary mechanism for the enhanced fracture toughness in viscoelastic solids. Such dissipation is spatially non-uniform and is highly coupled to the crack propagation process due to the history-dependent nature of viscoelasticity. We present an experimental approach to map the dissipation field during crack propagation in soft viscoelastic solid
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Exploring static responses, mode transitions, and feasible tunability of Kagome-based flexible mechanical metamaterials J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-02 Jian Li, Ronghao Bao, Weiqiu Chen
We consider the static responses of the uniaxially compressed flexible mechanical metamaterials, which integrate soft hinges and rigid bodies, constructed from the Kagome lattice. First, we experimentally find that the static responses of the regular-Kagome-based structure significantly differ from those of the twisted-Kagome-based structure with a very small twisting angle. Following this, we establish
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A Theoretical Model of Enhanced Adhesion of Bioinspired Micropillar Arrayed Surfaces J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-03-01 Yonggui Cheng, Zhilong Peng, Shaohua Chen
To achieve better adhesion, micropillar arrayed surfaces inspired by the gecko adhesion system have gained significant attention. However, debate continues on whether micropillar arrayed surfaces actually enhance interfacial adhesion compared to smooth surfaces. To clearly understand the factors influencing the adhesion force of micropillar arrayed surfaces and provide a criterion for achieving enhanced
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Plastic deformations and strain hardening in fully dense granular crystals J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-29 Ashta Navdeep Karuriya, Francois Barthelat
Granular crystals are intriguing constructs at the intersection between granular matter and architectured materials, offering new combinations of tunable mechanical properties, healing and recyclability. We have recently fabricated and tested strong, fully dense granular FCC crystals based on millimeter size rhombic dodecahedral grains. These “granular metamaterials” display a rich set of mechanisms:
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High-efficient and reusable impact mitigation metamaterial based on compression-torsion coupling mechanism J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-29 Haifeng Ou, Lingling Hu, Yanbin Wang, Chang Liu
Lightweight and reusable materials are desired in engineering for mitigating repetitive impacts. However, the limitation of mitigation efficiency is always a problem in spite of various materials have been studied. And other issues need to be improved, such as bulky and poor load-bearing. There still exists challenge to design a reusable impact mitigation material with high efficient, lightweight and
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Ellipticity enhances adhesion strength for contacts under shear loads J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-28 Fa Wu, Qingao Wang, Chun Li, Qunyang Li, Huajian Gao
Adhesion under a shear load parallel to the contact interface is a common issue in engineering and biological systems, such as when insects and adhesion devices crawl on vertical walls. A question of interest is whether and how the shear load influences the adhesion behavior between an elliptical flat punch and an elastic medium. Here, we derive lower- and upper-bound limiting analytical solutions
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Analytical boundary integral solutions for cracks and thin fluid-filled layers in a 3D poroelastic solid in time and wavenumber domain J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-28 Elías R. Heimisson
The spectral boundary integral (SBI) method has been widely employed in the study of fractures and friction within elastic and elastodynamic media, given its natural applicability to thin or infinitesimal interfaces. Many such interfaces and layers are also prevalent in porous, fluid-filled media. In this work, we introduce analytical SBI equations for cracks and thin layers in a 3D medium, with a
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Third-order exceptional points and frozen modes in planar elastic laminates J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-28 Ariel Fishman, Guy Elbaz, T. Venkatesh Varma, Gal Shmuel
Exceptional points (EPs) are degeneracies of two or more natural modes of open systems, which lead to unusual wave phenomena. Despite the robustness against imperfections of spatial EPs, they are less studied relative to temporal EPs, particularly in elastodynamics. However, elastic waves exhibit features not found in sound and light, which have proven useful for forming spatial EPs. Here, we harness
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Challenging the paradigm for reactive material's ignition from shear to pressure: Thermomechanical study of Al-PTFE J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-23 G.G. Goviazin, R. Ceder, S. Kalabukhov, S. Hayun, D. Rittel
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Fracture toughness of two-dimensional materials dominated by edge energy anisotropy J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-22 Maolin Yu, Zhiqiang Zhao, Wanlin Guo, Zhuhua Zhang
Two-dimensional materials (2DMs) are prone to brittle failure under load but a recent experiment has demonstrated intrinsic toughening in hexagonal boron nitride (-BN), which calls for a general understanding of fracture toughness in 2DMs. Using atomistic calculations combined with a developed size-dependent extrapolation method, we show that 2DMs with strong anisotropy of edge energy favor bifurcated
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Experimental characterization and constitutive modeling of thermoplastic polyurethane under complex uniaxial loading J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-21 Sergio I. Reyes, Michalis F. Vassiliou, Dimitrios Konstantinidis
This paper presents the testing and constitutive modeling of a Thermoplastic Polyurethane (TPU) compound used in commercial applications. The tested specimens were extracted directly from a TPU sphere used in check valves through water-jet cutting. The tests included tensile and compression tests under complex uniaxial loading protocols to capture different nonlinear phenomena, such as stress softening
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Mechanistic mapping of random fields for stochastic finite element simulations of quasibrittle fracture J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-21 Josh Vievering, Jia-Liang Le
Spurious mesh sensitivity is a major challenge in continuum finite element (FE) simulations of damage and fracture of quasibrittle structures. It has been shown that the existing localization limiters, which largely focus on energy regularization, are insufficient for addressing the issue of mesh sensitivity in stochastic analysis. In this study, we investigate the mathematical algorithm for mapping
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Fluid-injection control on energy partitioning during the earthquake cycle J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-20 Maryam Alghannam, Hector Gomez, Ruben Juanes
During an earthquake, the elastic energy stored in the Earth is released as frictional energy and radiated energy in the form of seismic waves. The partitioning of energy released during an earthquake gives an indication of the overall size of the earthquake and its potential for damage to man-made structures. Here, we perform an energy analysis of fluid-injection-induced earthquakes using a single-degree-of-freedom
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On rapid compaction of granular materials: Combining experiments with in-situ imaging and mesoscale modeling J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-20 Mohmad M. Thakur, Sohanjit Ghosh, Ryan C. Hurley
Grain and pore kinematics are important features of the response of granular materials to impact loading and rapid compaction. These kinematics and the associated material-phase stresses control solidification processes in shock-driven manufacturing and ignition in energetic materials. Diagnostics used in traditional gas-gun experiments cannot resolve spatially-heterogeneous grain and pore kinematics
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Prediction of yield surface of single crystal copper from discrete dislocation dynamics and geometric learning J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-17 Wu-Rong Jian, Mian Xiao, WaiChing Sun, Wei Cai
The yield surface of a material is a criterion at which macroscopic plastic deformation begins. For crystalline solids, plastic deformation occurs through the motion of dislocations, which can be captured by discrete dislocation dynamics (DDD) simulations. In this paper, we predict the yield surfaces and strain-hardening behaviors using DDD simulations and a geometric manifold learning approach. The
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A reactive electrochemomechanical theory for growth and remodeling of polyelectrolyte hydrogels and application to dynamic polymerization of DNA hydrogels J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-17 Brandon K. Zimmerman, Bibekananda Datta, Ruohong Shi, Rebecca Schulman, Thao D. Nguyen
This study develops a framework for growth and remodeling of active polyelectrolyte hydrogels that accounts for effects of compositional changes on the mechanical response. By developing a reactive electrochemomechanical theory, thermodynamical constraints upon reactive and remodeling processes are elucidated within a general framework that allows any number of chemical reactions to evolve the response
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Anomalous tension–compression asymmetry in amorphous silicon: insights from atomistic simulations and elastoplastic constitutive modeling J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-13 Bin Ding, Liang Hu, Yuan Gao, Yuli Chen, Xiaoyan Li
Recent experiments observed an inherent, anomalous tension-compression (T-C) asymmetry with T>C in microscale amorphous silicon (a-Si), which is free of dominant microcracks or dislocations. However, quantifying the disordered structure of a-Si and correlating it with T-C asymmetry remains mysterious. Here, we first conduct a series of atomistic simulations to explore this anomaly in a-Si. Results
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Physics-infused deep neural network for solution of non-associative Drucker–Prager elastoplastic constitutive model J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-12 Arunabha M. Roy, Suman Guha, Veera Sundararaghavan, Raymundo Arróyave
In the present work, a physics-informed deep learning-based constitutive modeling approach has been introduced, for the first time, to solve non-associative Drucker–Prager elastoplastic solid governed by a linear isotropic hardening rule. A purely data-driven surrogate modeling approach for representing complex and highly non-linear elastoplastic constitutive response prevents accurate predictions
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Viscoelastic mechanics of two-dimensional granular lattices J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-10 Srinivas Selvaraju, Shailendra P. Joshi, Nikhil Karanjgaokar
We study the rate-dependent mechanics of viscoelastic granular packings. Using a two-dimensional, square lattice of particles as a motif mimicking nominally mono-disperse granular packings, we perform a suite of finite element simulations under rate-dependent uniaxial compaction followed by unloading. The focus is on understanding the macroscopic force–displacement relations and the porosity evolution
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A multiscale viscoelastic fiber dispersion model for strain rate-dependent behavior of planar fibrous tissues J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-10 Kewei Li, Gerhard A. Holzapfel
Recently, we introduced an efficient discrete fiber dispersion model for characterizing the mechanical behavior of soft fibrous tissues, and we also extended that model to consider microscale collagen fiber recruitment, softening, and damage. However, the viscous behavior of collagen fibers was not considered in that study. The goal of this study is to further extend the discrete fiber dispersion model
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On the (lack of) representativeness of quasi-static variational fracture models for unstable crack propagation J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-09 A. Chao Correas, J. Reinoso, P. Cornetti, M. Corrado
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An elastic-damaging cohesive law for cell–substrate adhesion with positive and negative durotaxis J. Mech. Phys. Solids (IF 5.3) Pub Date : 2024-02-09 Elena Benvenuti, Gino Antonio Reho
Durotaxis of cells anchored to the extracellular matrix through focal adhesions has been systematically studied through both analytical and computational approaches. However, recent experiments have revealed the attitude of certain cells to unexpectedly migrate towards comparatively softer substrates, thus suggesting the possibility for to manifest. Cell migration is possible because focal adhesions