Using M-integral for multi-cracked problems subjected to nonconservative and nonuniform crack surface tractions

J. H. Chang, W. H. Wu

研究成果: 雜誌貢獻期刊論文同行評審

12 引文 斯高帕斯(Scopus)

摘要

In this paper, an energy parameter based on the concept of the M-integral is proposed for describing the fracture behavior of a multi-cracked solid subjected to nonconservative and nonuniform crack surface tractions. By using the M-integral with a suitably chosen closed contour, one can evaluate the 'surface creation energy' (SCE) required for creation of the stressed cracks. Also, it is demonstrated that the property of path-independence holds even under the action of crack surface tractions. Therefore, the singular stress field in the near-tip areas is not directly involved in the calculation so that a complicated finite element model around the crack tips is not required in evaluation of the M-integral.

原文???core.languages.en_GB???
頁(從 - 到)2605-2613
頁數9
期刊International Journal of Solids and Structures
48
發行號19
DOIs
出版狀態已出版 - 15 9月 2011

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