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论文类型：期刊论文

发表时间：2021-01-10

发表刊物：INTERNATIONAL JOURNAL OF APPLIED MECHANICS

卷号：12

期号：7

ISSN号：1758-8251

关键字：Extended reference stress method; C*-integral; biaxial loading; reference stress method; biaxial limit load

摘要：The reference stress method (RSM) is a classical method to estimate C*-integral of creep crack. An extended reference stress method (ERSM) is given for the central cracked plate (CCP) under biaxial loading in this paper. The applicability and verification for the proposed ERSM is given. The study finds that the solutions with the proposed ERSM agree better than those of RSM under biaxial loading condition. A theoretical form to predict the relationship of C *-integral between biaxial loading and uniaxial loading is discussed. Relation between C*-integral and creep time under biaxial loading is validated and discussed.