Effect of liquid metal embrittlement on low cycle fatigue properties and fatigue crack propagation behavior of a modified 9Cr–1Mo ferritic–martensitic steel in an oxygen-controlled lead–bismuth eutectic environment at 350 °C

2014 ◽  
Vol 618 ◽  
pp. 406-415 ◽  
Author(s):  
Xing Gong ◽  
Pierre Marmy ◽  
Ling Qin ◽  
Bert Verlinden ◽  
Martine Wevers ◽  
...  
Keyword(s):  
Fatigue Crack ◽  
Liquid Metal ◽  
Crack Propagation ◽  
Martensitic Steel ◽  
Low Cycle Fatigue ◽  
Fatigue Properties ◽  
Cycle Fatigue ◽  
Fatigue Crack Propagation Behavior ◽  
Propagation Behavior ◽  
Crack Propagation Behavior

Simulation for Fatigue Crack Propagation Behavior Based on Low Cycle Fatigue Critical Damage

2011 ◽  
Vol 69 ◽  
pp. 45-50
Author(s):  
Chen Bao ◽  
Li Xun Cai ◽  
Xue Wei Huang
Keyword(s):  
Finite Element ◽  
Fatigue Crack ◽  
Crack Propagation ◽  
Fatigue Crack Propagation ◽  
Low Cycle Fatigue ◽  
Cycle Fatigue ◽  
Fatigue Crack Propagation Behavior ◽  
Propagation Behavior ◽  
Crack Propagation Behavior ◽  
Critical Damage

Based on low cycle fatigue critical damage, a numerical procedure for predicting stable fatigue crack propagation behavior of materials and structures was developed, which was named as LFF (LCF: Low Cycle Fatigue + FCP: Fatigue Crack Propagation + FEA: Finite Element Analysis) in this work. In the LFF method, stress and strain amplitude of nodes located at the plastic zone in the crack growing direction and fatigue damage of these nodes were firstly computed from a finite element code ANSYS. Then, by assuming a discontinuous step of propagation in the process of fatigue crack propagation, the stable fatigue crack propagation behavior of materials and structures could be estimated. Experiments on low cycle fatigue and fatigue crack propagation for Cr2Ni2MoV, TA12 and TC4 alloys were employed to certificate the applicability and validity of the LFF method. The results show that the LFF method is suitable for the estimation of stable fatigue crack propagation of a CT specimen with a straight crack under mode Ⅰloading and with a slant crack under mixed mode Ⅰ and Ⅱ loading.

Study of Crack Propagation Behavior on Low Cycle Fatigue in Squeeze Cast Aluminium Alloy

2000 ◽  
Vol 183-187 ◽  
pp. 1017-1022
Author(s):  
Kazuhiro Morino ◽  
Fumihito Nishimura ◽  
Kunimasa Takahashi ◽  
Yun Hae Kim ◽  
Hironobu Nisitani
Keyword(s):  
Crack Propagation ◽  
Aluminium Alloy ◽  
Low Cycle Fatigue ◽  
Cycle Fatigue ◽  
Squeeze Cast ◽  
Cast Aluminium ◽  
Propagation Behavior ◽  
Crack Propagation Behavior
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