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| Solving inverse couple stress problem via homotopy method |
| Received:October 29, 2009 Revised:July 08, 2010 |
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| DOI：10.7511/jslx201102016 |
| KeyWord:couple stress inverse problem bregman function homotopy method |
| Author | Institution |
| 薛齐文 |
大连交通大学 载运工具先进技术重点实验室,大连 ;大连理工大学 工业装备结构分析国家重点实验室,大连 |
| 张军 |
大连交通大学 载运工具先进技术重点实验室,大连 |
| 魏伟 |
大连交通大学 载运工具先进技术重点实验室,大连 |
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| Abstract: |
| This paper presents a general numerical model to identify parameters for inverse couple-stress problem with homotopic method based on Bregman distances function. A finite element model is given, taking account of inhomogeneity and facilitating to sensitivity analysis for direct and inverse problems. Satisfactory numerical validation is given including a preliminary investigation of effect of noise data and the terms for different Bregman functions. Results show that the proposed method can identify parameters for the inverse couple-stress problem with high computational efficiiency and the ability of anti-noisy data. |