Brittle-ductile failure transition in geomaterials modeled by a modified phase-field method with a varying damage-driving energy coefficient

T You, H Waisman, QZ Zhu - International Journal of Plasticity, 2021‏ - Elsevier
With elevated confining pressure and low temperatures, geomaterials may exhibit brittle-to-
ductile failure transition due to increased cataclastic flow. In this work, we propose a …

Investigation of fatigue crack growth in engineering components containing different types of material irregularities by XFEM

SA Kanth, GA Harmain, A Jameel - Mechanics of Advanced …, 2022‏ - Taylor & Francis
The extended finite element (XFEM) has been applied to investigate fatigue crack growth in
engineering components containing different types of material irregularities. The standard …

Elastoplastic deformation of a porous rock and water interaction

SY **e, JF Shao - International Journal of Plasticity, 2006‏ - Elsevier
In this paper, a new constitutive model is proposed for the description of elastoplastic
behaviour of a porous chalk, including creep deformation and effect of water saturation. The …

Numerical simulation of the forging process

P Hartley, I Pillinger - Computer methods in applied mechanics and …, 2006‏ - Elsevier
The principal objective of this paper is to provide a short overview of recent research in the
numerical simulation of forging, with an emphasis on applications rather than the …

Experimental studies on the yield behavior of ductile and brittle aluminum foams

M Doyoyo, T Wierzbicki - International Journal of Plasticity, 2003‏ - Elsevier
Specimen size effects are a major cause of the unreliability of foam models in finite element
codes. Here, the modified Arcan apparatus is used to investigate the biaxial yielding of …

Implementation of plasticity based models in dynamic analysis of earth and rockfill dams: A comparison of Pastor–Zienkiewicz and cap models

AR Khoei, AR Azami, SM Haeri - Computers and Geotechnics, 2004‏ - Elsevier
In this paper, a unified finite element formulation associated with saturated and unsaturated
soils is presented. The finite element method is applied to the governing equations for the …

A porosity-dependent inelastic criterion for engineering materials

M Aubertin, L Li - International Journal of Plasticity, 2004‏ - Elsevier
Many criteria have been developed to describe the yielding condition, plastic potential, and
failure strength of engineering materials. In this paper, the authors first review the …

Modelling dynamic and irreversible powder compaction

R Saurel, N Favrie, F Petitpas… - Journal of Fluid …, 2010‏ - cambridge.org
A multiphase hyperbolic model for dynamic and irreversible powder compaction is built.
Four important points have to be addressed in this case. The first one is related to the …

Multiaxial constitutive model accounting for the strength-differential in Inconel 718

SK Iyer, CJ Lissenden - International Journal of plasticity, 2003‏ - Elsevier
The nickel-base alloy Inconel 718 exhibits a strength-differential, that is, a different plastic
flow behavior in uniaxial tension and uniaxial compression. A phenomenological …

[HTML][HTML] Extended finite element method in plasticity forming of powder compaction with contact friction

AR Khoei, A Shamloo, AR Azami - International Journal of Solids and …, 2006‏ - Elsevier
In this paper, a new computational technique is presented based on the eXtended Finite
Element Method (X-FEM) in pressure-sensitive plasticity of powder compaction considering …