Results 51 to 60 of about 738 (114)

A viscoplasticity model with an enhanced control of the yield surface distortion

open access: yes, 2012
A new model of metal viscoplasticity, which takes combined isotropic, kinematic, and distortional hardening into account, is presented. The basic modeling assumptions are illustrated using a new two-dimensional rheological analogy.
Ihlemann, J., Shutov, A. V.
core   +1 more source

Thermoviscoplastic model with application to copper [PDF]

open access: yes
A viscoplastic model is developed which is applicable to anisothermal, cyclic, and multiaxial loading conditions. Three internal state variables are used in the model; one to account for kinematic effects, and the other two to account for isotropic ...
Freed, Alan D.
core   +1 more source

Some numerical verification examples for plane stress elasto-viscoplasticity [PDF]

open access: yes, 2019
This paper presents analytical, semi-analytical and numerical reference examples which can be employed for code verification of elasto-viscoplastic models under plane stress conditions.
Brezolin, Andrey   +3 more
core  

Consistent integration of the constitutive equations of Gurson materials under adiabatic conditions [PDF]

open access: yes, 2008
16 pages, 12 figures.-- MSC2000 codes: 74S20, 74C10, 74A15.-- Zbl#: Zbl 1159.74447In this paper, a consistent integration procedure for the thermoviscoplastic version of the complete Gurson model is proposed. With adiabatic conditions considered and with
Fernández-Sáez, José   +2 more
core   +2 more sources

Time-independent Anisotropic Plastic Behavior by Mechanical Subelement Models [PDF]

open access: yes, 1983
The paper describes a procedure for modelling the anisotropic elastic-plastic behavior of metals in plane stress state by the mechanical sub-layer model.
Pian, T. H. H.
core   +1 more source

Gaussian ideal impulsive loading of rigid viscoplastic plates [PDF]

open access: yes
The response of a thin, rigid, viscoplastic plate subjected to a spatially axisymmetric Gaussian ideal impulse loading was studied analytically. The Gaussian ideal impulse distribution instantaneously imparts a Gaussian initial velocity distribution to ...
Hayduk, R. J.
core   +1 more source

Identification of viscoplastic parameters and characterization of Lüders behaviour using digital image correlation and the virtual fields method

open access: yes, 2008
In this study, tensile loading experiments are performed on notched steel bars at an average applied strain rate of 1s-1. Displacement fields are measured across the specimen by coupling digital image correlation (DIC) with imaging using high speed CCD ...
Avril   +20 more
core   +2 more sources

Viscoplastic Modeling of Surface Relief Grating Growth on Isotropic and Preoriented Azopolymer Films. [PDF]

open access: yesPolymers (Basel), 2023
Tverdokhleb N   +4 more
europepmc   +1 more source

Home - About - Disclaimer - Privacy