Showing papers in "International Journal of Solids and Structures in 2017"

TL;DR: In this article, a 3D conjugated bond-pair-based peridynamic model is proposed to simulate the initiation and propagation of cracks in brittle solids, where interacting forces between two material points within one horizon are not only related to the stretch of the bond, but also related to rotation of the conjugation angles.

TL;DR: In this paper, a simplified bar and hinge model that can simulate essential behaviors of folding origami is presented to simulate three distinct behaviors: stretching and shearing of thin sheet panels, bending of the initially flat panels, and bending along prescribed fold lines.

TL;DR: In this paper, a ductile fracture model is proposed to describe shear fracture of sheet metals from shear to balanced biaxial tension via uniaaxial and plane strain tension.

TL;DR: In this paper, an elastically-isotropic octet truss lattice is designed in a way that the constituent beams respond in a stretching-dominated manner instead of bending, and selected isotropic structures of 20% relative density are built from a photopolymer using stereolithography.

TL;DR: In this paper, the dispersion relations and band gaps for the propagation of elastic waves in the undeformed and fully deformed stable configurations were determined using finite element models, and a reduced order model based on a one-dimensional lattice was developed to interpret and explain the emergence of low frequency band gaps in intermediate stable configurations in which some unit cells are undeformed while others are deformed.

TL;DR: In this paper, a normalized symmetric kernel was proposed for nonlocal integral elasticity analysis of Euler Bernoulli beam theory, and the modified kernel was shown to satisfy all the properties of a probability density function as well as successfully handles the physical inconsistencies of classic types of kernel.

TL;DR: In this paper, a fully coupled three-dimensional finite-element model for hydraulic fractures in permeable rocks is presented, and used to investigate the ranges of applicability of the classical analytical solutions that are known to be valid in limiting cases.

TL;DR: In this article, a computational framework based on the mesh-free smoothed particle hydrodynamics (SPH) method is developed to study the coupled behaviour of fluid and solid in a deformable porous medium.

TL;DR: In this article, a crystal plasticity computational homogenization framework is proposed to simulate the cyclic deformation of polycrystalline alloys that exhibit Bauschinger effect, mean stress relaxation, ratcheting and cyclic softening, as it happens in many Nickel based superalloys.

TL;DR: In this article, two 3D cross chiral structures with negative Poisson's ratios were proposed based on the Timoshenko beam theory, and the Young's modulus and Poisson ratio of the cellular structures were obtained in all principal directions.

TL;DR: In this paper, an evolving non-associated Hill48 anisotropic plasticity model was formulated to accurately characterise the anisotropy evolution under monotonic loading, and the model was applied to the forming limits prediction in conjunction with the modified maximum force criterion.

TL;DR: In this paper, a consistent anisotropic damage model for laminated fiber-reinforced composites relying on the 3D-version of the Puck failure criterion is presented, which is implemented into the implicit FE commercial package ABAQUS using the user-defined capability UMAT.

TL;DR: In this paper, a three-dimensional constitutive model is proposed to describe the non-coaxial behaviour of sand within the framework of anisotropic critical state theory, which features a plastic potential explicitly expressed in terms of a fabric tensor reflecting the anisotropy of soil structure.

TL;DR: In this paper, the effective response of several MRE specimens with respect to the individual impact of microscopic morphology and macroscopic shape was analyzed in a two-dimensional setting, and a generic analytical approach to shape effects was presented based on magneto-mechanical tractions acting on the surface of mRE specimens.

TL;DR: In this article, a three-layered plate with high-contrast mechanical and geometric properties of the layers is analyzed and two-mode asymptotic polynomial expansions of the Rayleigh-Lamb dispersion relation approximating both the fundamental bending wave and the first harmonic are derived.

TL;DR: In this article, a homogenization study of porous piezoelectric materials through analytical and numerical analysis is presented, using two well-known analytical methods, the Mori-Tanaka and self-consistent schemes, to obtain the full set of material properties.

TL;DR: In this paper, the effect of the adhesive thickness on the strength of single lap joints from the perspective of the longitudinal strain along the adhesive mid-plane was investigated. And the results showed that the new strain based method could well consider the strength reduction of SLJs due to increasing adhesive thickness.

TL;DR: In this article, a combined finite-discrete element method (FDEM) was used to analyze 3D dry-stone masonry structures with respect to structural damage at joint and block level.

TL;DR: In this article, the authors investigate the danger of restricting a band-gap detection to the contour of the Brillouin zone (BZ) instead of its full IBZ and show that the IBZ contour provides accurate results only for highly symmetric lattices.

TL;DR: In this article, experimental data gathered from the literature and relevant to FRP-confined columns are simulated by adopting the Lattice Discrete Particle Model (LDPM) and the Spectral Microplane Model (SMPM), recently developed to simulate concrete failure and fracture of anisotropic materials, respectively.

TL;DR: In this paper, a locally resonant acoustic metamaterial with periodic multicoated inclusions with viscoelastic layers is investigated, where multiple attenuation regimes obtained with the considered geometry are joined for a certain level of viscosity of the coating layer.

TL;DR: A theoretical model to describe the response of a one dimensional mechanical system under cyclic loading, including the non-linear response on loading, hysteretic behaviour on unloading and reloading, and the phenomenon of ratcheting under very many cycles is presented.

TL;DR: In this article, a high-fidelity approximate modeling strategy is proposed to improve the efficiency of WMPLA and then promote its application for the preliminary design stage of stiffened shells.

TL;DR: In this paper, a comprehensive study on crack propagation in brittle material is conducted using the distinct lattice spring model (DLSM) with high-performance computing and physical tests.

TL;DR: In this paper, an elastic multiphase-field model is used to predict the evolution of the martensitic variants in austenitic grains, including grain boundary and autocatalytic nucleation.

TL;DR: In this paper, an inertial amplification mechanism topology with flexure hinges is proposed that yields ultra wide stop bands at low frequencies, and the optimal dimensions of the mechanism are found that give the widest possible stop band.

TL;DR: In this article, a numerical simulation of yarn-to-yarn interactions was performed to investigate the effects of yarn structure on deformation localizations and in-and out-of-plane displacements.

TL;DR: In this paper, a numerical model is developed which serves to predict the damage behavior and crack propagation in the coating system using the cohesive zone (CZ) element technique embedded at grain boundaries as well as in the interface between the coating and the substrate.

TL;DR: In this paper, a micromorphic single crystal plasticity model is formulated at finite deformations as an extension of Mandel's classical theory based on a multiplicative decomposition of the deformation gradient.

TL;DR: In this paper, a fractional order plasticity model was proposed for modeling various kinds of plastic flow patterns of different granular soils without changing the details of the potential function, and the flexible ability of the proposed model was further validated by simulating multiple series of experimental results.