The multiplicative deformation split for shells with application to growth, chemical swelling, thermoelasticity, viscoelasticity and elastoplasticity [PDF]
International Journal of Solids and Structures, 2018 This work presents a general unified theory for coupled nonlinear elastic and inelastic deformations of curved thin shells. The coupling is based on a multiplicative decomposition of the surface deformation gradient.
R. Sauer, Reza Ghaffari, Anurag Gupta
semanticscholar +1 more source
Single-Slip Elastoplastic Microstructures [PDF]
Archive for Rational Mechanics and Analysis, 2005 zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Conti, Sergio, Theil, Florian
openaire +1 more source
On stress resultant plasticity and viscoplasticity for metal plates [PDF]
, 2008 In this work we derive elastoplastic and elastoviscoplastic finite element formulations for stress resultant bending analysis of thin metal plates. The principle of maximum plastic dissipation is used to obtain the ingredients of the small strain stress ...
Brank, Boštjan, Dujc, Jaka
core +1 more source
KONA Powder and Particle Journal, 2014 Stress analysis on the compaction of ceramic powder was performed by the finite element method (FEM) to predict the optimum conditions.
Atsuko Shimosaka +3 more
doaj +1 more source
Twist disclination in the field theory of elastoplasticity [PDF]
, 2003 In this paper we study the twist disclination within the elastoplastic defect theory. Using the stress function method, we found exact analytical solutions for all characteristic fields of a straight twist disclination in an infinitely extended linear ...
Lazar, Markus
core +1 more source
Implicit yield function formulation for granular and rock-like materials [PDF]
, 2014 The constitutive modelling of granular, porous and quasi-brittle materials is based on yield (or damage) functions, which may exhibit features (for instance, lack of convexity, or branches where the values go to infinity, or false elastic domains ...
Bigoni, D. +3 more
core +2 more sources
Quasistatic elastoplasticity via Peridynamics: existence and localization [PDF]
, 2017 Peridynamics is a nonlocal continuum mechanical theory based on minimal regularity on the deformations. Its key trait is that of replacing local constitutive relations featuring spacial differential operators with integrals over differences of ...
M. Kružík +2 more
semanticscholar +1 more source
Incremental response of granular materials: DEM results [PDF]
, 2009 We systematically investigate the incremental response of various equilibrium states of dense 2D model granular materials, along the biaxial compression path (\sigma 11 < \sigma 22, \sigma 12 = 0). Stress increments are applied in arbitrary directions in
Froiio, Francesco, Roux, Jean-Noël
core +4 more sources
Variational Inequalities in Critical-State Problems [PDF]
, 2004 Similar evolutionary variational inequalities appear as convenient formulations for continuous quasistationary models for sandpile growth, formation of a network of lakes and rivers, magnetization of type-II superconductors, and elastoplastic ...
Aronsson +29 more
core +2 more sources
A new class of plastic flow evolution equations for anisotropic multiplicative elastoplasticity based on the notion of a corrector elastic strain rate [PDF]
, 2016 We herein present a new continuum theory for both isotropic and anisotropic elastoplasticity at large strains. The new framework has the following properties: (1) It is valid for non-moderate large strains, (2) it is valid for both elastic and plastic ...
M. Latorre, F. Montáns
semanticscholar +1 more source