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A recently developed high Mn austenitic steel damper was found to show an excellent low-cycle fatigue resistance, irrespective of specimen size. To explain the robustness against specimen size, this study proposes a probabilistic prediction method for the effect of specimen size on fatigue life. In the present study, a Fe-30Mn-4Si-2Al model austenitic alloy that shows a superior low-cycle fatigue...
A new method to estimate fatigue life of cracked structure is introduced in this paper. Based on the virtual crack closure technique (VCCT), the special fatigue element is developed to estimate fatigue life in conjunction with finite element analysis. The stress intensity factors are calculated within the fatigue element and the fatigue life of the element at the crack tip is determined by Paris'...
An analytical model for predicting the crack initiation life of low cycle fatigue (LCF) of discontinuously reinforced metal matrix composites (DR-MMCs) has been proposed on the basis of Gibbs free energy law. The formation of a fatigue crack was considered to be associated with the reduction of the internal energy that could be expressed as a part of the area of the saturated hysteresis loop. The...
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