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铁道科学与工程学报

JOURNAL OF RAILWAY SCIENCE AND ENGINEERING

Vol. 5    No. 1    March 1995

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CREEP DAMAGE AND FRACTURE
Liu Changlong ;Zhang Ping; Pan Yong

Xiangtan University Xiangtan 411105

Abstract:Creep damage behavior and creep crack propagation behavior at high temperatures were investigated. The expressions of the resistance to creep damage, stress intensity factor threshold and initiation time were obtained under given conditions. The range of applicability of the characterizing parameter for creep crack growth was analysed by using resistance to creep damage of material. The influence of temperature on stress intensity factor threshold and creep crack growth rate was analysed. Expressions for creep crack growth rate were presented.

 

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ISSN 1672-7029
CN 43-1423/U

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