J. Bobinski  J. Tejchman <br/><br/>
Numerical Simulations of Localization of Deformation in Quasi-Brittle Materials Within Non-Local Softening Plasticity 

 - 433-455 p. 
<br/><br/> 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. 
<br/><br/><label>ISSN: </label>1598-8198 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Brittle Material<br/>Compression<br/>Extension<br/>Material Softening<br/>Non-Locality<br/>Plasticity<br/>Shear Localization.