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Electrokinetic energy conversion of high pressuredriven flow with pressureviscosity effect at high zeta potential Int. J. Eng. Sci. (IF 7.155) Pub Date : 20230123
Zhiyong Xie, Yongjun Jian, Xingyu ChenIn this study, the electrokinetic energy conversion efficiency is investigated theoretically in high pressuredriven flow with the pressureviscosity effect. Calculations of the electrokinetic flow in a straight nanochannel are based on the PoissonBoltzmann equation and modified fluid momentum equation. Once the viscosity of fluid is dependent on the pressure, the strongly nonlinear governing equation

A thermodynamic framework for additive manufacturing of crystallizing polymers, Part II: Simulation of the printing of a stent Int. J. Eng. Sci. (IF 7.155) Pub Date : 20230119
P. Sreejith, K. Srikanth, K. Kannan, K.R. RajagopalWe use the theory developed by [43] to simulate in Abaqus the printing of a drugeluting bioresorbable stent (BRS), which is used to treat a stenosed renal artery, by fused deposition modeling (FDM). The stent is assumed to be printed using a semicrystalline polylactic acid (PLA). We control the process parameters to architect the microstructure of the stent such that the stent has an amorphous glassy

Multiconstituent simulation of thrombosis in aortic dissection Int. J. Eng. Sci. (IF 7.155) Pub Date : 20230119
Yan Wang, Jingyang Luan, Kun Luo, Ting Zhu, Jianren FanAortic dissection is a major aortic catastrophe with a high morbidity and mortality risk, and thoracic endovascular repair (TEVAR) has recently been established as the preferred treatment option for promoting false lumen (FL) remodeling and improving hemodynamics in the true lumen. Complete thrombosis of the FL has been thought to be a prerequisite for healing of the aorta postdissection, whereas flow

Antiplane shear waves in an elastic strip rigidly attached to an elastic halfspace Int. J. Eng. Sci. (IF 7.155) Pub Date : 20230112
Gennadi Mikhasev, Barış Erbaş, Victor A. EremeyevWe consider the antiplane shear waves in a domain consisting of an infinite layer with a thin coating lying on an elastic halfspace. The elastic properties of the coating, layer, and halfspace are assumed to be different. On the free upper surface we assume the compatibility condition within the Gurtin–Murdoch surface elasticity, whereas at the plane interface we consider perfect contact. For this


Incremental equations and propagation of small amplitude waves for isotropic incompressible elastic bodies. The case the Hencky strain tensor is a function of the Cauchy stress tensor Int. J. Eng. Sci. (IF 7.155) Pub Date : 20230103
R. BustamanteFor a relatively new class of constitutive equation for incompressible elastic bodies, wherein the Hencky strain tensor is a function of the Cauchy stress tensor, incremental equations are obtained, where it is assumed the presence of an initial timeindependent stress that causes large deformations, to which a small timedependent stress tensor is added. That stress tensor is assumed to cause a small

A thermodynamic framework for the additive manufacturing of crystallizing polymers. Part I: A theory that accounts for phase change, shrinkage, warpage and residual stress Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221228
P. Sreejith, K. Kannan, K.R. RajagopalA rigorous, comprehensive, and thermodynamically consistent theory has been developed for the fused deposition modelling (FDM) of semicrystalline polymers. It is sufficiently general in that it can accommodate multiple phase transition mechanisms (crystallization, glass transition, and melting) during the heating and cooling cycles of the process encountered during FDM. The theory predicts the residual

Intersonic propagation of shear zone as an effect of longitudinal deformation Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221217
Arcady Dyskin, Elena PasternakExamples are presented when propagation of the boundaries of the zones of frictional sliding or elastic shear propagate with the speed of the longitudinal wave (or pwave) and thus can be confused with the instances of intersonic fracture propagation. In these examples the mechanism of intersonic sliding/shear zone propagation is the longitudinal elastic deformation of the material surrounding the

A symplectic BrezisEkelandNayroles principle for dynamic plasticity in finite strains Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221214
Cao Xiaodan, Abdelbacet Oueslati, An Danh Nguyen, Marcus Stoffel, Bernd Markert, Géry de SaxcéIn a previous paper, the last author proposed with Buliga a symplectic version of Brezis–Ekeland–Nayroles principle based on the concepts of Hamiltonian inclusions and symplectic polar functions. It was illustrated by application to the standard plasticity in small deformations. The objective of this work is to generalize the previous formalism to dissipative media in finite strains. This aim is reached

Atomistic and continuum modeling of nanoparticles: Elastic fields, surface constants, and effective stiffness Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221214
V.I. KushchThe elastic fields, surface constants and effective elastic moduli of nanoparticles are studied by means of classical molecular dynamics and continuum mechanics. Two analytical models of isotropic nanoparticles are considered. The first model is a sphere coated with a thin surface layer, which simulates the effect of the free surface energy in the nanoparticle. In the second model, the surface effect

Generalized continuum mixture theory for multimaterial shock physics Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221209
Shane C. Schumacher, Melvin R. BaerA longstanding area of research for computational shock physics has been the treatment of mixed materials. A mixed material volume is defined as a control volume space where two or more materials coexist as immiscible materials having separate densities and energies that have nonequilibrium stress and thermal states. In traditional computational shock physics framework, a mixture of materials can

Stochastic characterization of multiscale material uncertainties on the fibrematrix interface stress state of composite variable stiffness plates Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221208
A. Pagani, M. Petrolo, A.R. SánchezMajanoThis work analyses the stochastic response of fibre and matrix scale stresses of Variable Angle Tow (VAT) laminates affected by multiscale uncertainty defects. The aim is to evaluate the influence of the innermost constituents on the overall structural response via an accurate mechanical characterization of both macro and microscales. The Carrera Unified Formulation (CUF) is employed to obtain twodimensional

On the dynamics of curved magnetoactive soft beams Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221205
Wei Chen, Lin Wang, Zhi YanRecently, hardmagnetic microparticles were embedded into soft matrix to manufacture a new type of magnetoactive soft materials, i.e. hardmagnetic soft (HMS) materials. Due to the promising applications of HMS materials in the areas of soft robotics, flexible electronics, biomedicine, etc., there is a burgeoning trend in investigating the mechanical responses of HMS structures. Special attention has

On a comprehensive analysis for mechanical problems of spherical structures Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221205
Shahriar Dastjerdi, Amin Alibakhshi, Bekir Akgöz, Ömer CivalekThis paper applies a semianalytical polynomial method (SAPM) to solve the mechanical governing equations of nonlinear static and dynamic deformations, free and forced vibrations, and buckling analyses of nanosized spherical functionally graded structures. Due to the nanosized structure, the constitutive equations of motion are obtained based on the nonlocal elasticity theory. The governing equations

Highly nonlinear hyperelastic shells: Statics and dynamics Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221202
Hossein B. Khaniki, Mergen H. Ghayesh 

On timedependent nonlinear dynamic response of microelastic solids Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221128
Mohammad Malikan, Victor A. EremeyevA new approach to the mechanical response of micromechanic problems is presented using the modified couple stress theory. This model captured microturns due to microparticles' rotations which could be essential for microstructural materials and/or at small scales. In a micro media based on the small rotations, subparticles can also turn except the whole domain rotation. However, this framework

A multiphysics model for the thermoelectric dissociation of gas hydrates Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221121
T.I. Zohdi, G.J. MoridisThis work develops a model and rapid simulation strategy for the electricallydriven dissociation (unlocking) of subsurface gas hydrates. There are two schools of thought, as to how electrical fields can dissociate gas hydrates: Case 1: gas hydrates are dissociated (unlocked) by an appropriate intensity and frequency of the electric field, Case 2: gas hydrates are dissociated by an appropriate level

A unified regularized variational cohesive fracture theory with directional energy decomposition Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221112
Ye Feng, Jie LiIn this paper, the cohesive fracture is revisited as an energy minimization problem. The energy functional is rigorously derived based on a pair of integral transformations and a novel directional energy decomposition method. The resulting description of the regularized crack is perfectly suitable for cohesive fracture. A welldefined crack direction is associated with each material point. The resulting

Identification of ‘replacement’ microstructure for porous medium from thermal conductivity measurements: Problem formulation and numerical solution Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221112
Adrian Różański, Jakub Rainer, Damian Stefaniuk, Igor Sevostianov, Dariusz ŁydżbaThe problem of reconstruction and quantitative characterization of the microstructure of random composites, as a fundamental problem of material sciences, has been a subject of a considerable amount of literature. Thus far, previous studies used for the reconstruction either statistical microstructure descriptors or the overall property of real material. This paper makes a major contribution to research

Stationary variational principle of mixture unified gradient elasticity Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221107
S.Ali Faghidian, Krzysztof Kamil Żur, Ernian PanThe stress gradient, strain gradient, and classical elasticity theory are integrated within a consistent variational framework to conceive the mixture unified gradient theory of elasticity. The significant advantage of the established stationary variational principle lies in incorporating all the governing equations, viz. the boundaryvalue problem of the associated dynamic equilibrium along with the

A unified highorder model for sizedependent vibration of nanobeam based on nonlocal strain/stress gradient elasticity with surface effect Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221105
Weidong Yang, Shuo Wang, Wenbing Kang, Tao Yu, Yan LiIn this work, a unified highorder nanobeam model considering various highorder shear deformation beam theories is established to investigate the vibration response of nanobeam on the basis of twophase local/nonlocal strain and stress gradient theory, as well as surface elasticity theory. The unified model also includes the EulerBernoulli beam model and Timoshenko beam model. Herein, the elastic

Effective elastic properties and wave surfaces of rock materials containing multiple cavities and cracks (effective field approach) Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221105
S. Kanaun, I. Markova, G. Ronquillo JarilloThe paper is devoted to simulation of the effective elastic properties of rock materials containing two substantially different types of defects simultaneously: random sets of ellipsoidal pores (cavities) and elliptical cracks. For solution of the homogenization problem and calculation of the effective elastic properties of such materials, the selfconsistent effective field method is used. For composites

Modeling thermoelectric effects in piezoelectric semiconductors: New fully coupled mechanisms for mechanically manipulated heat flux and refrigeration Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221029
Yilin Qu, Ernian Pan, Feng Zhu, Feng Jin, Ajit K. RoyWe present a continuum theory for analyzing the interaction between the thermoelectric and mechanical fields in piezoelectric semiconductors. The balance laws and dissipation inequality are formulated in the reference configuration. Thermodynamically consistent constitutive equations are derived, including the driftdiffusion current, Fourier's law for thermal flux, Seebeck effect, and Peltier effect

Electromagnetic field excitation during the scattering of an acoustic wave on an inhomogeneity in a poroelastic medium Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221027
Anatoly Markov, Mikhail Markov, Valery Levin, Gerardo Ronquillo JarilloElastic wave propagation in porous media containing a movable fluid is frequently accompanied by electromagnetic field generation. Such field can be produced, for instance, by piezoelectric effect or have electrokinetic origin. In the present work, we consider the case of electrolytefilled pores; thus, the generated electromagnetic field is associated with the electrokinetic effects. In this case

Theory and experiment for dynamics of hyperelastic plates with modal interactions Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221025
Hossein B. Khaniki, Mergen H. Ghayesh, Rey Chin 
On nonlinear forced vibration of micro scaled panels Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221024
Mohammad Amin Shahmohammadi, Sayed Mohamad Mirfatah, Hamzeh Salehipour, Ömer CivalekThe main target of this paper is to evaluate the geometrically nonlinear and sizedependent response of shallow sandwich curved micropanels (SCMPs). In this regard, the governing equations are developed by using modified couple stress theory (MCST) based on the firstorder shear deformation theory (FSDT). The proposed sandwich micro panels are assumed to be made of three layers so that the middle

Continuum model for converse flexoelectricity in a thin plate Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221024
A.S. Yurkov, P.V. YudinFlexoelectricity – the effect where inhomogeneous polarization causes deformation – substitutes symmetryforbidden piezoelectricity in nanoscale centrosymmetric materials. Its mathematical treatment in terms of continuum mechanics represents a challenge: correct models are subjects of debates during the past decades. In the present article we formulate a model with reasonable approximations for converse

The effect of porosity on the elastic properties of cortical bone and ultrasound propagation Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221024
Jiuguang Zhou, Zhiwen Cui, Bixing Zhang, Tribikram Kundu, Igor SevostianovThis paper focuses on the modeling of the effect of different porosity on the overall elastic properties of saturated cortical bone and ultrasound wave propagation in such bone. We first utilize micromechanical model of Zhou, Cui and Sevostianov (2020) to model anisotropic effective elastic stiffness of saturated cortical bone and evaluate the effect of partial porosities. It is shown that the moduli


Dislocation singularities in layered magnetoelectroelastic plates Int. J. Eng. Sci. (IF 7.155) Pub Date : 20221007
A. Vattré, E. PanA general and unified theory is formulated to investigate static and timeharmonic field solutions induced by dislocation loops and dislocation arrays in threedimensional multilayered structures. Each homogeneous plate consists of an orthotropic magnetoelectroelastic material including nonlocal effects. While the nonlocal constitutive relations with multiphase coupling are treated by means of the

On the design of nonHermitian elastic metamaterial for broadband perfect absorbers Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220929
Liyun Cao, Yifan Zhu, Sheng Wan, Yi Zeng, Badreddine AssouarElastic metamaterial, an engineered artificial material, has received much attention in physics and engineering communities due to its functional properties unavailable in natural materials. However, most elastic metamaterials, especially for their twodimensional structures, belong to the Hermitian category, making them difficult to adapt to real lossy structures and explore their loss modulation

Electromagnetic field generated by acoustic wave scattering at a poroelastic inclusion located in a fluid Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220926
Mikhail Markov, Anatoly Markov, Valery Levin, Federico J. SabinaThe study of elastic wave propagation in poroelastic media is of considerable scientific interest because of some effects that do not appear in monophasic elastic or viscoelastic media. In the case of interconnected pores containing a moving fluid in a poroelastic medium, there exist two types of longitudinal waves. In heterogeneous porous media, the energy of elastic oscillations is redistributed

Micromechanical modeling of the viscoelastic–viscoplastic response of fiberreinforced composites Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220926
Yang Chen, Tian Nan, Gun Jin Yun, Chao ZhangThis paper describes a newly proposed viscoelastic–viscoplastic constitutive model that is used to characterize the effective mechanical behaviors of fiberreinforced composites based on micromechanical modeling. A homogenization approach is developed in which the effective stress of the fiberreinforced composite is decomposed into an elastoplastic component and a viscous component. For the elastoplastic

Chemotransportmechanics in advecting membranes Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220924
M. Serpelloni, M. Arricca, C. Bonanno, A. SalvadoriIn many actual technological problems the system response is dictated by multiphysics events, which occur at different space–timescales. Energy storage systems or active polymers are two illustrative reallife applications: they involve diffusion of chemically active species concurrent to mechanical deformations that take place in the same spatial domain. An abundant literature exists nowadays for


On the mechanics of nanobeams on nanofoundations Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220914
Raffaele Barretta, Marko Čanađija, Raimondo Luciano, Francesco Marotti de SciarraA plethora of current applicative problems of NanoEngineering involve nanostructures interacting with elastic media which exhibit significant size effects. Internal elasticity of the nanostructure and external elasticity of the surrounding foundation can be conveniently modelled by two nonlocal continua, provided that the relevant structuresoil problem results to be wellposed. This issue is still

Threedimensional flows of incompressible Navier–Stokes fluids in tubes containing a sinus, with varying slip conditions at the wall Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220913
R. Chabiniok, J. Hron, A. Jarolímová, J. Málek, K.R. Rajagopal, K. Rajagopal, H. Švihlová, K. TůmaThe objective of this study is to understand the formation of vortices and other flow characteristics associated with the threedimensional motions of an incompressible Navier–Stokes fluid in tubes containing a sinusoidal extension. The study has some bearing on two conjectures that da Vinci made concerning the flow of blood through the aortic root. We investigate how the flow attributes change with

New classes of periodic and nonperiodic exact solutions for Newtonian and nonNewtonian fluid flows Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220902
Subin P. JosephTwo different families of planar exact solutions for second grade fluid flows are derived in this paper. Exact solutions for Newtonian fluid flows are derived as particular case when normal stress moduli vanish. The novelty of the solutions is that they are obtained by assuming the stream functions as a finite sum of functions with different arguments. An important property of the derived solutions

On the dynamics of 3D nonlocal solids Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220829
Andrea Francesco Russillo, Giuseppe Failla, Raffaele Barretta, Francesco Marotti de SciarraThe stressdriven nonlocal continuum theory is a wellestablished integral elasticity formulation. Modelling the elastic strain via a convolution integral between stress and an averaging kernel, the theory leads to an integrodifferential structural problem for arbitrary 3D nonlocal solids. Integral elasticity solutions are mainly available for 1D solids by adopting a biexponential kernel and reverting

Resistivity contribution tensor for nonconductive sphere doublets Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220819
L. Lanzoni, E. RadiThe distribution of the temperature and heat flux fields around a couple of unequal nonconductive tangent spherical inhomogeneities (or pores) embedded in an infinite medium under a steadystate and remotely applied heat flux is addressed in the present work. Owing to the 3D geometrical layout of the inhomogeneity, use is made of the tangent sphere coordinate system. A corrective temperature field

Stress wave propagation through a 180° bend junction in a square crosssectional bar Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220818
Ghatu Subhash, Joaquin GarciaSuarez, Amith Cheenady, Salil Bavdekar, Wilburn Whittington, JeanFrancois MolinariLongitudinal elastic stress wave propagation through a 180° bend junction connecting two square bars is analyzed using analytical and numerical approaches and validated against experiments. The aim is to identify conditions under which the onedimensional stress propagation principles can be applied to this geometry despite complete reversal of the stress wave path and study the mechanism of wave propagation


Sharpinterface continuum thermodynamics of multicomponent fluid systems with interfacial mass Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220729
Dieter BotheWe revisit the sharpinterface continuum thermodynamics of twophase multicomponent fluid systems with interfacial mass. Since the published work is not fully consistent, we provide a rigorous derivation of the local balance equations and the entropy production rates, including all relevant steps and mathematical tools. Special emphasis is put on an axiomatic form of the entropy principle which, at

Role of viscoelastic fluid rheology in miscible viscous fingering Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220720
Pooja Jangir, Anushka Herale, Ratan Mohan, Paresh ChokshiClassical viscous fingering patterns in flow displacement can be modulated by incorporating polymers into either of the two fluids. The polymeric solutions are viscoelastic fluids exhibiting both shearthinning as well as elastic behavior. The present numerical study examines the dynamics of viscous fingering in miscible flow displacement with either displacing or displaced fluid being treated as polymeric

Phase field theory for fracture at large strains including surface stresses Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220715
Hossein Jafarzadeh, Gholam Hossein Farrahi, Valery I. Levitas, Mahdi JavanbakhtPhase field theory for fracture is developed at large strains with an emphasis on a correct introduction of surface stresses at nanoscale. This is achieved by multiplying the cohesion and gradient energies by the local ratio of the crack surface areas in the deformed and undeformed configurations and with the gradient energy in terms of the gradient of the order parameter in the reference configuration

Thermomechanically coupled constitutive equations for soft elastomers with arbitrary initial states Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220714
Weiting Chen, YaPu ZhaoIt is a longstanding challenge to predict the thermomechanically coupled behaviors of initially stressed soft elastomers since most of the existing theories ignore the influences of thermoelastic deformation histories. The constitutive equations may be completely different even for the same initial stresses, if the latter is originated from isothermal and adiabatic deformations, respectively. In

Thermoelasticity and effective properties of solids containing flexible and deformable threadlike inhomogeneities Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220706
Iaroslav M. Pasternak, Heorhiy Sulym, Holii OleksandrThe paper presents a novel approach for analysis of thermoelasticity problems for solids with deformable threadlike (wired, textile) inhomogeneities. It is proposed to model a threadlike inclusion with a spatial curve, with appropriate influence functions set on it. The mathematical models of heat conduction and thermoelasticity of threadlike inclusions are obtained, which account for thermal, elastic

On the vibration dynamics of heterogeneous panels under arbitrary boundary conditions Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220702
Yuanxun Zheng, Behrouz Karami, Davood ShahsavariThis work is promoted to analyze the timedependent behavior of composite panels. Furthermore, different curves and boundary conditions are also covered. The material properties for the composite panel are assumed to be vary continuously within zdirection. The effective material properties are estimated via Voigt’s micromechanical model by a modifiedpower law rule for arbitrary power index. The

On constitutive modelling of linear poroviscoelastic solids Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220701
Pei Zheng, Xiong Tang, Keming ZhangIn this paper we develop a threedimensional constitutive model to describe the linear viscoelastic behavior of fluidsaturated porous solids. The proposed model is based on a representation of the solid free energy by equilibrium and nonequilibrium parts. Constitutive equations corresponding to a compressible solid matrix/phase and an incompressible solid matrix/phase are derived separately. For

Asymptotic derivation of 2D dynamic equations of motion for transversely inhomogeneous elastic plates Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220629
Julius Kaplunov, Barış Erbaş, Nihal EgeThe 3D dynamic equations in elasticity for a thin transversely inhomogeneous plate are subject to asymptotic analysis over the lowfrequency range. The leading and first order approximations are derived. The former is given by a biharmonic equation on the midplane generalizing the classical Kirchhoff equation for plate bending. A simple explicit formula for the effective bending stiffness is presented

Stressdriven nonlinear behavior of curved nanobeams Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220624
Mohammad RezaieePajand, Niloofar RajabzadehSafaeiA nonlocal stressdriven model for geometrically nonlinear behavior of a shallow arch under radial pressure is presented. The analytical nonlinear equilibrium equation and also buckling equations by variational principles and virtual work are found. As it has been proven before, the straindriven models encountered some contradictions with local equilibrium conditions, while stressdriven formulation

Determination of multiphysics effective properties, and actuation response of triply periodic minimal surface based novel photostrictive composites: A finite element analysis Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220623
Diwakar Singh, Raj Kiran, Komal Chawla, Rajeev Kumar, Vishal S. Chauhan, Rahul VaishThis paper presents the novel triply periodic minimal surface (TPMS) based photostrictive composite as an alternative to naturally occurring photostrictive materials. The nonthermal, lightinduced mechanical strain i.e., photostriction involves the simultaneous action of photovoltaic effect and converse piezoelectric effect. All the effective elastic, dielectric, piezoelectric, and pyroelectric properties

A set of electrically conducting collinear cracks between two dissimilar piezoelectric materials Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220622
V. Loboda, A. Sheveleva, F. Chapelle, Y. LapustaThe plane problem of multiple collinear cracks between two piezoelectric semiinfinite spaces is considered. The cracks can have arbitrary lengths and distances between each other and they are assumed to be electrically conductive. The materials are polarized in the orthogonal to the interface direction. Inplane combined tensionshear loading and the electric field parallel to the crack faces are


Nonuniqueness, stability and bifurcation analyses in elastoviscoplastic boundary value problems with no inertia Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220603
Huan Wang, Panagiotis Kotronis, Giulio SciarraThe article focuses on nonuniqueness, bifurcation and stability conditions in elastoviscoplastic boundary value problems when inertia terms are neglected. Analytical and numerical studies are presented to investigate the capability of an elastoviscoplastic model to regularize the behavior in the occurrence of strain localization with respect to number of strain bands formed and mesh dependency.

On the unexplored relationship between kinetic energy and helicity in prosthetic heart valves hemodynamics Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220516
Diego Gallo, Umberto Morbiducci, Marco D. de TullioSurgical replacement of the diseased aortic valve consists in the implantation of a prosthetic heart valve (PHV), either biological or mechanical (BHV and MHV, respectively). Risks of complication have been linked to high levels of turbulence and consequent energy dissipation induced by the PHV. As helicity is an emergent feature in cardiovascular flows, deemed to impact blood flow organization, stability

Tailoring the anisotropic (positive/zero/negative) thermal expansion in shape memory alloys through phase transformation and martensite (re)orientation Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220512
M. Zhang, T. BaxevanisRecent experiments demonstrated that the macroscopic thermal expansion (TE) response of bulk shape memory alloys (SMAs) can be tailored via martensite variant texturing by taking advantage of the significant intrinsic TE anisotropy of the martensite lattice. Here, a description of the TE response of SMAs is proposed, which relies on the volume fraction of oriented (detwinned) martensite and the orientation

On modeling of elastic interface layers in particle composites Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220511
V.I. Kushch, S.G. MogilevskayaTwo high order imperfect interface models of elastic spherical interphase are developed using the BövikBenveniste methodology. In one model, the effect of the layer is accounted for via jumps in the field variables across the traces of its boundaries, while in the other—via corresponding jumps across the trace of its midsurface. The derived higher order jump conditions are incorporated into the unit

Regularization of localization due to material softening using a nonlocal hardening variable in an Eulerian formulation of inelasticity Int. J. Eng. Sci. (IF 7.155) Pub Date : 20220509
Martin Kroon, M.B. RubinIt is known that damage or inelastic softening can cause an illposed problem leading to localization and meshdependence in finite element simulations. In this paper, a nonlocal hardening variable, κ̄, is introduced in a finite deformation Eulerian formulation of inelasticity with a rateindependent smooth elastic–inelastic transition. This nonlocal variable is defined over an Eulerian region of nonlocality