In the present work, a new explicit expression of macroscopic yield criterion is derived for
porous materials, such as soil, rock and cement-based materials. To consider the …

Mineral grains and porosity are two common properties of geomaterials. This study focuses
on establishing a macroscopic yield criterion for geomaterials having pores and mineral …

The purpose of this study is to present a plastic-damage model that can well capture the
mechanical behaviors of rock-like materials. To this end, a three-invariant yield function …

A large number of analytical strength criteria have been developed for porous materials
having a Drucker-Prager solid matrix by using different up-scaling methods. A number of …

The present study is devoted to the theoretical determination and a numerical assessment of
macroscopic yield criteria for ductile porous materials consisting of a pressure sensitive …

A micro-mechanics-based elastic–plastic model is proposed to describe mechanical
behaviors of porous rock-like materials. The porous rock is considered as a composite …

In this paper we establish the exact solution for a hollow sphere with a rigid-plastic pressure-
sensitive matrix and subjected to hydrostatic tension or compression. The matrix is assumed …

An approximate analytical criterion is established in the present study to describe the
macroscopic strength behavior of porous materials with a pressure sensitive and tension …

In this work, a multiscale model based on the Fast Fourier Transform (FFT) technique is
applied to describe the mechanical behavior of porous materials. The effects of the …

Numerical challenges, incorporating non-uniqueness, non-convexity, undefined gradients,
and high curvature, of the positive level sets of yield function F> 0 are encountered in stress …