Some advances in study of crack identification problems
Data(s) |
1998
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Resumo |
In the present paper, the crack identification problems are investigated. This kind of problems belong to the scope of inverse problems and are usually ill-posed on their solutions. The paper includes two parts: (1) Based on the dynamic BIEM and the optimization method and using the measured dynamic information on outer boundary, the identification of crack in a finite domain is investigated and a method for choosing the high sensitive frequency region is proposed successfully to improve the precision. (2) Based on 3-D static BIEM and hypersingular integral equation theory, the penny crack identification in a finite body is reduced to an optimization problem. The investigation gives us some initial understanding on the 3-D inverse problems. |
Identificador | |
Idioma(s) |
英语 |
Fonte |
Fracture and Strength of Solids, PTS 1 AND 2, 1998, 145-154: 375-380 |
Palavras-Chave | #力学 #BIEM #Crack Identification #Frequency Choosing #Iterative Optimization |
Tipo |
期刊论文 |