TY  - SER
AU  - J. Bobinski 
AU  - J. Tejchman
TI  - Numerical Simulations of Localization of Deformation in Quasi-Brittle Materials Within Non-Local Softening Plasticity
SN  - 1598-8198
KW  - Brittle Material
KW  - Compression
KW  - Extension
KW  - Material Softening
KW  - Non-Locality
KW  - Plasticity
KW  - Shear Localization
N2  - The paper presents results of FE-calculations on shear localizations in quasi-brittle materials during both an uniaxial plane strain compression and uniaxial plane strain extension. An elasto-plastic model with a linear Drucker-Prager type criterion using isotropic hardening and softening and non-associated flow rule was used. A non-local extension was applied in a softening regime to capture realistically shear localization and to obtain a well-posed boundary value problem. A characteristic length was incorporated via a weighting function. Attention was focused on the effect of mesh size, mesh alignment, non-local parameter and imperfections on the thickness and inclination of shear localization. Different methods to calculate plastic strain rates were carefully discussed
UR  - DOI: 10.12989/cac.2004.1.4.433
ER  -