scholarly journals Microstructural design strategy to maintain the brittle fracture toughness of hard-soft dual phase steel after cyclic plastic strain

2021 ◽  
Vol 203 ◽  
pp. 109603
Author(s):  
Hiroaki Kosuge ◽  
Tomoya Kawabata ◽  
Teppei Okawa
Keyword(s):  
Fracture Toughness ◽  
Brittle Fracture ◽  
Plastic Strain ◽  
Dual Phase Steel ◽  
Design Strategy ◽  
Dual Phase ◽  
Cyclic Plastic ◽  
Microstructural Design ◽  
Cyclic Plastic Strain

Elastic-Plastic Finite Element Simulation and Fatigue Life Prediction for Beam and Elbow Under Cyclic Loading

2007 ◽  
Author(s):  
Xian-Kui Zhu ◽  
Brian N. Leis
Keyword(s):  
Finite Element ◽  
Fatigue Life ◽  
Cyclic Loading ◽  
Plastic Strain ◽  
Kinematic Hardening ◽  
Kinematic Model ◽  
Cyclic Plastic ◽  
Hardening Models ◽  
Critical Location ◽  
Cyclic Plastic Strain

Work hardening and Bauschinger effects on plastic deformation and fatigue life for a beam and an elbow under cyclic loading are examined using finite element analysis (FEA). Three typical material plastic hardening models, i.e. isotropic, kinematic and combined isotropic/kinematic hardening models are adopted in the FEA calculations. Based on the FEA results of cyclic stress and strain at a critical location and using an energy-based fatigue damage parameter, the fatigue lives are predicted for the beam and elbow. The results show that (1) the three material hardening models determine similar stress at the critical location with small differences during the cyclic loading, (2) the isotropic model underestimates the cyclic plastic strain and overestimates the fatigue life, (3) the kinematic model overestimates the cyclic plastic strain and underestimates the fatigue life, and (4) the combined model predicts the intermediate cyclic plastic strain and reasonable fatigue life.

scholarly journals Visualization of Plastic Strain Distribution in a Dual-Phase Steel Using High-Precision Grid-Markers

2012 ◽  
Vol 98 ◽  
pp. 303-310 ◽  
Author(s):  
Hidekazu Minami ◽  
Hiroshi Ikeda ◽  
Tatsuya Morikawa ◽  
Kenji Higashida ◽  
Tsuyoshi Mayama ◽  
...  
Keyword(s):  
Plastic Strain ◽  
High Precision ◽  
Strain Distribution ◽  
Dual Phase Steel ◽  
Dual Phase ◽  
Plastic Strain Distribution

scholarly journals Local plastic strain evolution in a high strength dual-phase steel

2010 ◽  
Vol 527 (18-19) ◽  
pp. 5026-5032 ◽  
Author(s):  
H. Ghadbeigi ◽  
C. Pinna ◽  
S. Celotto ◽  
J.R. Yates
Keyword(s):  
Plastic Strain ◽  
Dual Phase Steel ◽  
High Strength ◽  
Dual Phase ◽  
Local Plastic ◽  
Strain Evolution ◽  
Local Plastic Strain
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