材料
Online ISSN : 1880-7488
Print ISSN : 0514-5163
ISSN-L : 0514-5163
損傷発展式の応力敏感性と局所的解析法における有限要素依存性
劉 彦村上 澄男山田 哲也金川 靖
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1995 年 44 巻 507 号 p. 1417-1422

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Stress sensitivity of damage evolution equation and related mesh dependence in local approach to creep crack growth analysis were investigated. According to the numerical results for a plate subjected to uniform tension, the damage localization was observed under the conditions of vanishing pre-existed stress or strain concentrations. The reason for this damage localization was attributed mainly to the stress sensitivity of the damage evolution equation. Finally, several regularization methods in local approach were discussed and compared with each other by analyzing axisymmetric problems.

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