Lei Li, Guolai Yang*, Jiahao Li
CMES-Computer Modeling in Engineering & Sciences, Vol.124, No.3, pp. 865-884, 2020, DOI:10.32604/cmes.2020.010720
Abstract This paper proposes a probabilistic life calculation method of NdFeB
based on brittle fatigue damage model. Firstly, Zhu-Wang-Tang (ZWT) constitutive model considering strain rate is established, and based on this, a numerical
co-simulation model for NdFeB life calculation is constructed. The life distribution diagram of NdFeB under different stress levels is obtained after simulation.
Secondly, a new model of brittle fatigue damage based on brittle damage mechanism is proposed. Then the parameters in the model are identified according to the
life distribution diagram of NdFeB and the parameter distribution of the damage
evolution model when applied to NdFeB is obtained.… More >
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