圆形片状埋藏裂纹的Dugdale模型和COD公式

The Dugdale Model and the Corresponding COD Formula of the Circular Crack

本文推广了Dugdale平面裂纹条形塑性区简化模型,提出圆形片状埋藏裂纹的环状塑性区简化模型,并求出相应的COD公式,为此,本文还推广了卡氏定理。

This paper extend the Dugdale model of plastic strip for plane crack, pleasant the simplified model of annular plastic district for the circular crack and find the corresponding COD formula, for the sack of these, the thesis extend the Castigliano Theorem.