Results 41 to 50 of about 5,371,238 (109)
Lower bound for LCF lifetime and its application to safe design of elastic viscoplastic structures [PDF]
, 2006 The theory of shakedown is applied to obtain an upper estimation of LCF lifetime of structures. A model of elastic viscoplastic material similar to the Perzyna one with isotropic strain hardening and isotropic damage is adopted. Assumptions: viscoplastic
Druyanov, B., Roman, I.
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International Journal for Numerical and Analytical Methods in Geomechanics, Volume 48, Issue 11, Page 2762-2789, 10 August 2024.Abstract A previous perfect visco‐plastic constitutive formulation of the Perzyna type incorporating the concepts of prescribed stress increments and m‐AGC tangent operator (m‐Assumed algorithmic generalized compliance tangent operator) is extended to the case of Hardening/Softening (H/S).
Irene Jaqués, Ignacio Carol
wiley +1 more source
Geophysical Research Letters, Volume 51, Issue 14, 28 July 2024.Abstract We numerically investigate the role of plastic strain accumulation on the mechanical response of a planar strike‐slip fault. Our models show that fault‐zone strength significantly impacts the ensuing sequence of earthquakes. Weaker fault zones accumulating more plastic strain promote more complexity in the seismicity pattern through aperiodic ...
Mohamed Abdelmeguid +2 more
wiley +1 more source
Advanced Energy and Sustainability Research, Volume 5, Issue 1, January 2024.This review focuses on the current research progress of utilizing a variety of external physical fields to regulate lithium dendrites penetration in all solid‐state batteries. To this end, the mechanical properties of lithium and solid electrolytes as well as the experimental results that visually track lithium penetration dynamics are also reviewed ...
Jianhua Yao +9 more
wiley +1 more source
An anisotropic elastic-viscoplastic model for soft clays [PDF]
, 2010 Experimental evidences have shown deficiencies of the existing overstress and creep models for viscous behaviour of natural soft clay. The purpose of this paper is to develop a modelling method for viscous behaviour of soft clays without these ...
Chang, C. S. +3 more
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Rate equations for viscoplastic materials subjected to finite strains
, 1988 The constitutive equations for plasticity proposed by Voyiadjis [1984] and Voyiadjis & Kiousis [1987] are modified here in order to introduce rate sensitivity in the plastic region.
Mohammad, Louay N., Voyiadjis, George Z.
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Modelo constitutivo variacional de viscoplasticidade em regime de grandes deformações para um problema adiabático termomecanicamente acoplado [PDF]
, 2012 Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico, Programa de Pós-Graduação em Engenharia Mecânica, Florianópolis, 2009A separação total dos efeitos térmicos e mecânicos é razoável para a maioria das aplicações em ...
Selke, Augusto Emmel
core
An anisotropic elastic-viscoplastic damage model for bone tissue [PDF]
, 2013 A new anisotropic elastic-viscoplastic damage constitutive model for bone is proposed using an eccentric elliptical yield criterion and nonlinear isotropic hardening. A micromechanics-based multiscale homogenization scheme proposed by Reisinger et al. is
Zysset, P. K., Schwiedrzik, J. J.
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Viscoplastic slender-body theory [PDF]
, 2018 The theory of slow viscous flow around a slender body is generalized to the situation where the ambient fluid has a yield stress. The local flow around a cylinder that is moving along or perpendicular to its axis, and rotating, provides a first step in ...
Balmforth, NJ, Hewitt, DR
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Localized fatigue fracture in thermo-viscoplastic flow processes under cyclic dynamic loadings
, 2000 The main objective of the paper is the investigation of localized fatigue fracture phenomena in thermo-viscoplastic flow processes under cyclic dynamic loadings.
Perzyna, W. Dornowski
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