Showing papers in "International Journal of Engineering Science in 2021"

TL;DR: In this article, a geometrically exact model is developed for the simply-supported beam utilizing a higher-order beam theory including thickness stretching effect, and the virtual work statement of Hamilton principle is adopted to gain the governing equation as well as boundary conditions.

TL;DR: In this paper, a power-full higher-order shear-deformation theory in curvilinear coordinate is developed to model the doubly-curved nano-size shell.

TL;DR: In this paper, the percolation thresholds of penetrable spheroidal inclusions over a broad range of aspect ratios representing prolate pores have been determined for porous and fractured media.

TL;DR: A hybrid methodology is presented which combines classical constitutive laws (model-based), a data-driven correction component, and computational multiscale approaches, allowing for the synergistic integration between a physics-based response and a machine learning black-box.

TL;DR: In this article, the effective piezoelectric properties of heterogeneous materials are evaluated in the context of periodic homogenization, whereby a variational formulation is developed, articulated with the extended Hill macrohomogeneity condition.

TL;DR: In this article, the resonance phenomenon in anisotropic and functionally graded nano-size structure is investigated in a doubly curved shell which is modeled exploiting a quasi-three-dimensional model and nonlocal strain gradient theory in order to predict the small-size effects.

TL;DR: In this article, size-dependent dynamic responses of small-size frames are modelled by stress-driven nonlocal elasticity and assessed by a consistent finite-element methodology, starting from uncoupled axial and bending differential equations, the exact dynamic stiffness matrix of a two-node stress driven nonlocal beam element is evaluated in a closed form.

TL;DR: In this article, the necessity of the inclusion of the second invariant of the left Cauchy-Green deformation tensor B, namely I 2, in the strain energy function W of rubber-like materials is analysed.

TL;DR: In this paper, the authors analyze a hydraulic fracture driven by a non-Newtonian shear-thinning fluid and demonstrate that rheological properties of fluids significantly affect the process of hydraulic fracture not only by the values of viscosity, but also by the range of fluid shear rates over which variation of viscoities occurs.

TL;DR: In this paper, a generalised mathematical framework of finitely deformed magneto-electric soft materials is proposed to solve boundary value problems under magnetoelectrically coupled loads, where electric and magnetic fields and mechanical deformations are intricately coupled at finite strians.

TL;DR: In this article, the authors present a thorough investigation into the natural frequencies and mode shapes of thin doubly curved shallow microshells by taking into account the influence of material length scale parameter.

TL;DR: In this article, the authors established a hierarchical scheme from nano to macro scale to evaluate the dependance of these properties on the grain size and graphene volume concentration, which can provide a useful guideline for the design and applications of graphene/metal nanocomposites through the grain-size controlled process.

TL;DR: In this paper, a comparative analysis of the effect of manufacturing processes and process parameters on mechanical and thermal properties of stainless steel 316L has been presented for the parts produced by additive manufacturing (Selected Laser Melting), thermal spraying, casting, hot/cold rolling, hot-isostatic pressing, and forging technologies.

TL;DR: In this article, the calibration of small-scale parameters of non-classical continuum theories such as nonlocal strain gradient theory, strain gradients theory, stress-driven nonlocal elasticity, and strain-driven NLI elasticity was discussed.

TL;DR: In this article, a thermodynamic framework has been developed for a class of amorphous polymers used in fused deposition modeling (FDM), in order to predict the residual stresses and the accompanying distortion of the geometry of the printed part (warping).

TL;DR: In this paper, the authors focused on the dynamic homogenization of lattice-like materials with lumped mass at the nodes to obtain energetically consistent models providing accurate descriptions of the acoustic behavior of the discrete system.

TL;DR: In this article, a three-dimensional exact solution for temperature and thermoelastic stresses in multilayered anisotropic plates is derived for advanced boundary-value problems with general boundary conditions.

TL;DR: In this article, a novel mathematical formulation is established for the size-dependent thin doubly curved microshells of revolution with arbitrary meridian curve based on the modified couple stress theory and the Kirchhoff-love's hypothesis.

TL;DR: In this article, a fully nonlinear stick-and-spring model for graphene subjected to in-plane deformations is presented, where the constitutive behaviors of sticks and springs are defined, respectively, by the modified Morse potential and a nonlinear bond angle potential.

TL;DR: Stress concentration can be identified in the eyeball tissue of patients suffering from Glaucoma using the simulations presented in this study.

TL;DR: In this paper, the authors investigated the mode-I crack problem, where a three-dimensional infinite space of transversely isotropic multi-ferroic composite medium is weakened by multiple coplanar penny-shaped cracks under uniform mechanical, electric and magnetic loadings.

TL;DR: In this article, the authors revisited the strain gradient theory in three-dimensional spaces and decompose the strain gradients into four parts, based on which they reformulated the general isotropic flexoelectric theory.

TL;DR: In this paper, a free energy-based phenomenological modeling for magneto-active polymers is proposed, where coupled mechanical and magnetization constitutive equations are derived by considering magnetoviscoelasticity in a finite deformation framework.

TL;DR: In this paper, a machine learning aided non-deterministic damage prediction framework against both 2D and 3D fracture problems is presented by introducing a newly developed extended support vector regression (X-SVR) with generalized Dirichlet feature mapping into the phase field crack growth model.

TL;DR: In this paper, the propagation of localized surface waves in the framework of the linear Gurtin-Murdoch surface elasticity and taking into account a roughness of a free boundary is discussed.

TL;DR: In this paper, a micro annular circular sheet made of microcrystalline cellulose material has been analyzed under transverse loading and two types of two and three-dimensional equations in micro-size have been obtained.

TL;DR: In this paper, a weakly nonlinear analysis is conducted for localized necking of a hyperelastic solid cylinder under axial stretching based on the exact theory of nonlinear elasticity.

TL;DR: In this article, a nonlocal theory for the bending in large deformations under applied loads of an initially straight rod is presented, which has similarities with the classical Euler's elastica in the sense that the bending stiffness remains homogeneously constant, but it depends on an integral average of the entire curvature field.

TL;DR: All signs point to further progression of atherosclerosis, with high OSI and RRT indicating a further increase in the degrees of stenosis, or potential thrombus formation at the carotid sinus in case of plaque rupture due to increased velocity and WSS levels.