Shuiting Ding1, Liangliang Zuo2, Guo Li2,*, Zhenlei Li3, Shuyang Xia2, Shaochen Bao3
The International Conference on Computational & Experimental Engineering and Sciences, Vol.25, No.1, pp. 1-1, 2023, DOI: 10.32604/icces.2023.09911
Abstract This paper presents the assessment of fatigue damage for GH4169 under cyclic loading based on
thermodynamic entropy generation at elevated temperature. According to the second law of
thermodynamics, fatigue crack propagation is an irreversible thermodynamic dissipative process in which
damage accumulates and entropy generates with each cycle until fracture occurs. In this work, crack growth
process is simulated by commercial finite element software ABAQUS, and the concept of cyclic entropy
generation rate (CEGR) is proposed to present the entropy generation of the crack tip region in a single
loading cycle, where the calculation of CEGR is dependent on the evolution… More >
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