info:eu-repo/semantics/article
Two-Dimensional Analysis of Size Effects in Strain-Gradient Granular Solids with Damage-Induced Anisotropy Evolution
Fecha
2021Registro en:
0733-9399
Journal of Engineering Mechanics
0000000121541816
Autor
Maksimov, Valerii
Barchiesi, Emilio
Misra, Anil
Placidi, Luca
Timofeev, Dmitry
Institución
Resumen
We analyze in two dimensions the mechanical behavior of materials with granular microstructures modeled by means of a variationally formulated strain-gradient continuum approach based on micromechanics and show that it can capture microstructural-size-dependent effects. Tension-compression asymmetry of grain-assembly interactions, as well as microscale damage, is taken into account and the continuum scale is linked to the grain-scale mechanisms. Numerical results are provided for finite deformations and substantiate previous research. As expected, results show interesting size-dependent effects that are typical of strain-gradient modeling.