## 摘要

An energy parameter termed M_{c} is proposed for calculation of the surface energy associated with formation of multiple kinked cracks in 2-D anisotropic elastic solids. The formulation is based on a path-independent contour integral. The surface energy can be exactly evaluated by M_{c} when the cracked solids are homogeneously-stressed (i.e., the material characteristic), and effectively approximated when the solids are nonhomogeneously-stressed (i.e., the structural characteristic). It is thus suggested that M_{c} be possibly used as a fracture parameter that quantitatively measures the degradation of material (e.g. in micromechanics) and/or structural integrity due to irreversible evolution of multiple kinked cracks.

原文 | ???core.languages.en_GB??? |
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頁（從 - 到） | 1729-1739 |

頁數 | 11 |

期刊 | Computers and Structures |

卷 | 85 |

發行號 | 23-24 |

DOIs | |

出版狀態 | 已出版 - 12月 2007 |