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Effective Yield Strength for Material Powder Consolidated at Stage II Compaction
BIOS EA 4691, Université de Reims, Reims, France
BIOS EA 4691, Université de Reims, Reims, France
- 1 BIOS EA 4691, Université de Reims, Reims, France
- 2 BIOS EA 4691, Université de Reims, Reims, France
World Journal of Mechanics·Volume 04 (2014)·Pages 273–288·Published 29 September 2014·DOI10.4236/wjm.2014.49028
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Abstract
This work is concerned with the estimation from the outside of effective yield strength for the stage II consolidated material package of axisymmetric solid particles. Once an appropriate simple representative axisymmetric unit cell is chosen, the kinematical approach of the yield design homogenization method is used in order to obtain external estimates which has been found depending on the loading history (isostatic and closed die compactions) as well as on the relative density of the material powder. For comparison purpose, finite element simulations that describe the behavior of spherical elastic plastic particles uniformly distributed inside the material powder are carried out.
KeywordsStage II CompactionKinematic ApproachRelevant Failure MechanismUnit Cell ModelEffective Yield StrengthFinite Element Analysis
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