Investigation and numerical simulation on fretting fatigue of NiTi
2010
Based on the unique properties of NiTi shape memory alloys(SMA),a new type of dovetail joints was presented in this paper.Finite element analyses(FEA) were performed by using software MSC.Marc to research the fretting fatigue at low cycle fatigue(LCF) and low and high cycle combine fatigue(L-HCCF).Fretting fatigue life was predicted by using nominal stress method,whereby the initiating position of the crack was determined according to fretting fatigue damage(FFD) value.As a consequence,the method of predicting the fretting fatigue life is reasonable and valid,and fretting fatigue-resistance of NiTi-SMA is much better than traditional materials such as TC11.
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