ANALYSIS OF FATIGUE FRACTURE BASED ON PERIDYNAMIC

Perdynamic（PD） is used for analyzing crack propagation in engineering material fracture,the bonds constitute to the constitutive relation of the peridynamic,and the broken bonds represent to material fracture,but it can’t be used for the fatigue analysis.Based on the Miner’s linear cumulative damage...

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Bibliographic Details
Published in:	Ji xie qiang du Vol. 40; pp. 954 - 960
Main Authors:	石宏顺, 钱松荣, 张国浩, 徐婷, 原群盛
Format:	Journal Article
Language:	Chinese
Published:	Editorial Office of Journal of Mechanical Strength 01-01-2018
Subjects:	Peridynamic;High cycle fatigue;Bond;Fatigue fracture criterion;Life prediction;Fatigue crack
Online Access:	Get full text
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Summary:	Perdynamic（PD） is used for analyzing crack propagation in engineering material fracture,the bonds constitute to the constitutive relation of the peridynamic,and the broken bonds represent to material fracture,but it can’t be used for the fatigue analysis.Based on the Miner’s linear cumulative damage theory,the bond fatigue break criterion was proposed instead of the old break criterion,the PD fatigue fracture model for high cycle fatigue was constructed.Finally,a bending fatigue fracture analysis was carried out on a standard involute gear,the results show that the fatigue fracture process for gear by PD fatigue fracture model is consistent with experiment,the PD fatigue fracture model provides a method which consists of life prediction and fatigue crack propagation.
ISSN:	1001-9669