An extended crystal plasticity model to simulate the deformation behaviors of hybrid stress–strain controlled creep-fatigue interaction loading

2022 ◽  
Vol 156 ◽  
pp. 106680
Author(s):  
Dewen Zhou ◽  
Xiaowei Wang ◽  
Runzi Wang ◽  
Tianyu Zhang ◽  
Xinyu Yang ◽  
...  
Keyword(s):  
Crystal Plasticity ◽  
Plasticity Model ◽  
Stress Strain ◽  
Crystal Plasticity Model ◽  
Creep Fatigue ◽  
Deformation Behaviors ◽  
Hybrid Stress

Multi-level direct crystal plasticity model of polycrystalline specimen: Grains generation

2021 ◽  
Author(s):  
Artyom A. Tokarev ◽  
Anton Yu. Yants ◽  
Alexey I. Shveykin ◽  
Nikita S. Kondratiev
Keyword(s):  
Crystal Plasticity ◽  
Plasticity Model ◽  
Polycrystalline Specimen ◽  
Crystal Plasticity Model ◽  
Multi Level

Crystal Plasticity Predictions of Forward-Reverse Simple Shear Flow Stress

2011 ◽  
Vol 702-703 ◽  
pp. 204-207 ◽  
Author(s):  
Young Ung Jeong ◽  
Frédéric Barlat ◽  
Myoung Gyu Lee
Keyword(s):  
Flow Stress ◽  
Crystal Plasticity ◽  
Simple Shear ◽  
Bauschinger Effect ◽  
Texture Evolution ◽  
Simple Shear Flow ◽  
Plasticity Model ◽  
Lower Yield Stress ◽  
Crystal Plasticity Model ◽  
Stress Reversals

The flow stress behavior of a bake-hardenable steel during a few simple shear cycles is investigated using a crystal plasticity model. The simple shear test provides a stable way to reverse the loading direction. Stress reversals were accompanied with a lower yield stress, i.e., the Bauschinger effect, followed by a transient hardening stage with a plateau region and, permanent softening. The origins of these three distinct stages are discussed using a crystal plasticity model. To this end, the representative discrete grain set is tuned to capture such behavior by coupling slip system hardening appropriately. The simulated results are compared with experimental forward-reverse simple shear stress-strain curves. It is shown that the characteristic flow stress stages are linked to texture evolution and to the Bauschinger effect acting on the different slip systems.

scholarly journals Crystal Plasticity Model of Reactor Pressure Vessel Embrittlement in GRIZZLY

2015 ◽  
Author(s):  
Pritam Chakraborty ◽  
Suleyman Bulent Biner ◽  
Yongfeng Zhang ◽  
Benjamin Whiting Spencer
Keyword(s):  
Crystal Plasticity ◽  
Pressure Vessel ◽  
Reactor Pressure Vessel ◽  
Plasticity Model ◽  
Crystal Plasticity Model ◽  
Reactor Pressure
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