scholarly journals Thermo-mechanical Behaviour of a Soil. Yield Surface Evolution

2005 ◽  
pp. 125-134
Author(s):  
Moulay Saïd El Youssoufi ◽  
Christian Saix ◽  
Frédéric Jamin
Keyword(s):  
Yield Surface ◽  
Mechanical Behaviour ◽  
Surface Evolution

Modeling Induced Flow Anisotropy and Phase Transformations in Air Hardening Steels

2012 ◽  
Vol 504-506 ◽  
pp. 443-448
Author(s):  
Clemens Barthel ◽  
Benjamin Klusemann ◽  
Ralf Denzer ◽  
Till Clausmeyer ◽  
Bob Svendsen
Keyword(s):  
Phase Transformations ◽  
Yield Surface ◽  
Shear Test ◽  
Current Model ◽  
Material Model ◽  
Loading Path ◽  
Sheet Metals ◽  
Surface Evolution ◽  
Induced Flow ◽  
Flow Anisotropy

In this work a material model for hardening development in sheet metals during forming processes involving loading path changes is formulated. In particular, such hardening development is due to the formation and interaction of dislocation microstructures in the material, resulting in an evolution in the size, center and shape of the yield surface. Such yield surface evolution is accounted for in the current model with the help of an evolving structure tensor. The model is intended for an air hardening steel and takes therefore thermomechanics into account in particular phase transformations from ferrite to austenite and from austenite to martensite. As numerical examples a tension shear test and a heating-cooling sequence are simulated.

scholarly journals Yield surface evolution for columnar ice

2016 ◽  
Vol 6 ◽  
pp. 851-859 ◽  
Author(s):  
Zhiwei Zhou ◽  
Wei Ma ◽  
Shujuan Zhang ◽  
Yanhu Mu ◽  
Shunpin Zhao ◽  
...  
Keyword(s):  
Yield Surface ◽  
Surface Evolution
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