OS1413 Effect of Loading Direction on Crack Growth Behavior near Fusion Line in Low Carbon Stainless Steel Weld Joints

2009 ◽  
Vol 2009 (0) ◽  
pp. 35-37 ◽  
Author(s):  
Taku ARAI ◽  
Kenji KAKO ◽  
Keiji WATANABE ◽  
Yuichi MIYAHARA
Keyword(s):  
Stainless Steel ◽  
Crack Growth ◽  
Growth Behavior ◽  
Fusion Line ◽  
Crack Growth Behavior ◽  
Steel Weld ◽  
Low Carbon ◽  
Weld Joints ◽  
Loading Direction ◽  
Stainless Steel Weld

Crack growth behavior in 316FR stainless steel plate under tensile-bending loading and its simplified evaluation

1998 ◽  
Vol 15 (2) ◽  
pp. 81-86
Author(s):  
Nobuhiro Isobe ◽  
Shigeo Sakurai ◽  
Kazumichi Imou ◽  
Morio Yorikawa ◽  
Yukio Takahashi
Keyword(s):  
Stainless Steel ◽  
Crack Growth ◽  
Steel Plate ◽  
Growth Behavior ◽  
Crack Growth Behavior ◽  
Stainless Steel Plate ◽  
Bending Loading

Experiment and Modeling of Fatigue Crack Growth With Altering Loading Direction

2009 ◽  
Author(s):  
Wenfeng Tu ◽  
Xiaogui Wang ◽  
Zengliang Gao
Keyword(s):  
Growth Rate ◽  
Fatigue Crack ◽  
Crack Growth Rate ◽  
Fatigue Crack Growth ◽  
Crack Growth ◽  
Fatigue Damage ◽  
Growth Behavior ◽  
Cyclic Plasticity ◽  
Crack Growth Behavior ◽  
Loading Direction

The experiments of mixed Mode I-II fatigue crack growth with altering loading direction were conducted with compact specimens made of 16MnR steel. The specimens were tested under three loading steps. When the crack reached a certain length in the first step, the loading direction was switched to a certain angle. Finally, the loading direction was returned to the original orientation. The crack grow direction had a tendency perpendicular to the loading axis. Right after the loading direction was changed, the crack growth rate was retarded. A new approach developed was used to predict the crack growth behavior. The elastic-plastic stress analysis was performed using the finite element method with the implementation of a cyclic plasticity model. Based on the stress-strain response, fatigue damage near the crack tip was determined by a multi-axial fatigue criterion. Both the crack growth rate and cracking direction were obtained according to the maximum fatigue damage distribution on the critical material plane. The predictions for the crack growth behavior including the crack growth rate and crack growth path were in agreement with the experimental data.

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