Conferences

Numerical simulation of strain localization in porous rigid-plastic faulty materials

  

I. M. Frantsevich Institute for Problems of Materials Science of the NAS of Ukraine, Krzhizhanovsky str., 3, Kyiv, 03142, Ukraine
Mathematical Models and Computing Experiment in Material Science - Kiev: Frantsevich Institute for Problems of Materials Science NASU, 2013, #15
http://www.materials.kiev.ua/article/793

Abstract

Methods for description of evolution of voids and crack like defects during the straining are suggested. By the use of stability criteria the problem of shear bands in damaged materials is studied. The range of straining/loading paths, compatible with shear bands is established. The ductility criteria is formulated in qualitative form. It is sensitive to initial porosity, adhesion and dilatancy. Using this criteria the phenomena of overconsolidated cracks in powder technologies.


PLASTICITY OF COMPRESSIBLE MATERIALS, POWDER SPECIMEN DESTRUCTION, STRAIN LOCALIZATION