Πλοήγηση ανά Θέμα "Constitutive equations"
Αποτελέσματα 1-7 από 7
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Finite element analysis of damage in pipeline bends
(2010)The present paper describes a numerical formulation for the analysis of damage in steel pipeline bends. In particular, the numerical implementation of Gurson plasticity model is described in the framework of a special ... -
Finite element modeling of trip steels
(2004)In this paper, a constitutive model that describes the mechanical behavior of steels exhibiting the "Transformation Induced Plasticity" (TRIP) phenomenon during martensitic transformation is presented. Multiphase TRIP ... -
An implicit numerical scheme for cyclic elastoplasticity and ratcheting under plane stress conditions
(2021)The paper reports the development of an implicit numerical scheme for plane stress cyclic elasto-plasticity, capable of integrating a wide range of hardening rules, and simulating multi-axial ratcheting in metal structural ... -
A non-local plasticity model for porous metals with deformation-induced anisotropy: Mathematical and computational issues
(2021)A non-local (gradient) plasticity model for porous metals that accounts for deformation-induced anisotropy is presented. The model is based on the work of Ponte Castañeda and co-workers on porous materials containing ... -
A second gradient elasto-plastic model for fatigue of small-scale metal components
(2010)Purpose - As the dimensions of structures are scaled down to the micro- and nano-domains, the mechanical behavior becomes size dependent and thus, the classical elasticity solutions cannot be expected to hold. In particular, ... -
A strain-gradient isotropic elastoplastic damage model with J3 dependence
(2019)A “plastic-strain-gradient” version of an isotropic elastoplastic damage model that depends on the third invariant J3 of the stress deviator is developed. The model is based on the “non-local” equivalent plastic strain ep ... -
TRIP steels: A multiscale computational simulation and experimental study of heat treatment and mechanical behavior
(2020)A multiscale investigation of the microstructure and the mechanical behavior of TRIP steels is presented. A multi-phase field model is employed to predict the microstructure of a low-alloy TRIP700 steel during a two-stage ...