Damage and fracture loci for a dual-phase steel and a high-strength low-alloyed steel: Revealing the different plastic localization–damage–ductile fracture pattern

2016 ◽  
Author(s):  
Junhe Lian ◽  
Sebastian Münstermann ◽  
Wolfgang Bleck
Keyword(s):  
Ductile Fracture ◽  
Dual Phase Steel ◽  
High Strength ◽  
Fracture Pattern ◽  
Alloyed Steel ◽  
Dual Phase ◽  
Damage And Fracture ◽  
Plastic Localization ◽  
Low Alloyed Steel

scholarly journals Investigation on the ductile fracture of a high-strength dual-phase steel with anisotropic damage mechanics model

2021 ◽  
Author(s):  
Zinan Li ◽  
Wenqi Liu ◽  
Fuhui Shen ◽  
Sebastian Münstermann ◽  
Junhe Lian
Keyword(s):  
Plastic Deformation ◽  
Ductile Fracture ◽  
Fracture Behavior ◽  
Dual Phase Steel ◽  
High Strength ◽  
Tensile Tests ◽  
Uniaxial Tensile ◽  
Dual Phase ◽  
Plasticity Model ◽  
Anisotropic Plastic

In this study, a hybrid experimental and numerical investigation is implemented to characterize the plasticity and ductile fracture behavior of a high-strength dual-phase steel. Uniaxial tensile tests are conducted along the three typical directions of rolled sheet metals for the anisotropic plastic behavior, while the hydraulic bulge test is applied for the flow behavior under equiaxial biaxial tension. Further tensile tests are conducted on various featured dog-bone specimens to study the fracture behavior of the material from the uniaxial to plane-strain tension. On the numerical side, the evolving non-associated Hill48 (enHill48) plasticity model considering anisotropic hardening and plastic strain ratio evolution is employed to describe the anisotropic plastic deformation. The extended enHill48 model with damage and fracture formulation is further calibrated and validated in the study to describe the ductile fracture behavior of the steel under various stress states. Through a comparison of the results based on the evolving anisotropic model with the isotropic Mises model, it is concluded that even for materials that show only minor initial plastic anisotropy, it could develop a non-negligible influence on the large plastic deformation and the prediction of both deformation and fracture shows profound improvement with the evolving anisotropic plasticity model.

scholarly journals Ductile Fracture Mechanism for Dual Phase Steel with High Strength Second Phase

2015 ◽  
Vol 33 (4) ◽  
pp. 341-348
Author(s):  
Hiroto SHOJI ◽  
Keiichi HINO ◽  
Mitsuru OHATA ◽  
Yasuhiro SHINOHARA ◽  
Fumiyoshi MINAMI
Keyword(s):  
Ductile Fracture ◽  
Fracture Mechanism ◽  
Dual Phase Steel ◽  
High Strength ◽  
Second Phase ◽  
Dual Phase

scholarly journals A high-strength heterogeneous structural dual-phase steel

2019 ◽  
Vol 54 (19) ◽  
pp. 12898-12910 ◽  
Author(s):  
Bo Gao ◽  
Xuefei Chen ◽  
Zhiyi Pan ◽  
Jiansheng Li ◽  
Yan Ma ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
High Strength ◽  
Dual Phase

Microstructures in a resistance spot welded high strength dual phase steel

2010 ◽  
Vol 61 (3) ◽  
pp. 341-346 ◽  
Author(s):  
Xinsheng Liao ◽  
Xiaodong Wang ◽  
Zhenghong Guo ◽  
Min Wang ◽  
Yixiong Wu ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
High Strength ◽  
Dual Phase ◽  
Resistance Spot ◽  
Spot Welded
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