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Dreidimensionale Rekonstruktion von Werkstoffmikroporen auf der Grundlage der Stereologie und Ermüdungslebensdauervorhersage
Author(s) -
Sun M.,
Qu C.,
Zhang G.,
Zheng Y.,
Xu Zhiqiang
Publication year - 2020
Publication title -
materialwissenschaft und werkstofftechnik
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.285
H-Index - 38
eISSN - 1521-4052
pISSN - 0933-5137
DOI - 10.1002/mawe.201900134
Subject(s) - finite element method , structural engineering , materials science , fatigue testing , distribution (mathematics) , computer science , engineering , mathematics , mathematical analysis
Abstract In this paper, the fatigue life of Al‐Zn713 alloy castings was studied. Based on stereological theory and finite element method, a new idea of material fatigue life prediction was proposed. Goldsmith‐Cruz‐Orive method was used to reconstruct the three‐dimensional distribution of micropores that based on the two‐dimensional distribution information. The stress analysis of the reconstructed three‐dimensional geometric model was carried out by finite element method. Combining with the modified Coffin‐Manson formula, a material fatigue life prediction system based on the distribution of micropores was established, which opened up a new direction for the research of material fatigue behavior and fatigue life.