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辛奇异元方法与含裂纹结构加固问题分析

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Indexed by:期刊论文

Date of Publication:2013-06-15

Journal:计算力学学报

Included Journals:PKU、ISTIC、Scopus

Volume:30

Issue:z1

Page Number:58-61,83

ISSN No.:1007-4708

Key Words:辛体系;奇异元;裂纹;结构;加固

Abstract:本文借助于辛体系本征解展开原理和辛共轭正交关系,提出一种辛奇异元模型.并结合有限元软件形成一种新的数值方法和对含裂纹结构分析思路.其最大优势在于:直接给出裂纹的应力强度因子;不受单元网格密度的局限;不受路径的影响.利用该奇异元对含裂纹结构加固问题进行分析,发现了一些特殊的规律.为含裂纹结构加固技术提供依据.

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