Measurement of the near-tip displacement field in a fatigue damaged steel plate by digital speckle pattern interferometry

被引：3
|
作者：
Díaz, FV
Kaufmann, GH [1 ]
Armas, AF
Möller, O
机构：
[1] Univ Nacl Rosario, Fac Ciencias Exactas Ingn & Agrimensura, Dept Fis, RA-2000 Rosario, Santa Fe, Argentina
[2] Univ Nacl Rosario, Fac Ciencias Exactas Ingn & Agrimensura, Inst Mecan Aplicada & Estructuras, RA-2000 Rosario, Santa Fe, Argentina
[3] Univ Nacl Rosario, CONICET, Inst Fis Rosario, RA-2000 Rosario, Santa Fe, Argentina
来源：
OPTICS AND LASERS IN ENGINEERING | 2002年 / 37卷 / 06期
关键词：
digital speckle pattern interferometry; crack tip; fatigue;
D O I：
10.1016/S0143-8166(01)00077-X
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A digital speckle pattern interferometry system, with automatic data analysis is used to measure the near-tip in-plane displacement field in a stainless steel specimen previously cracked by a fatigue test, In-plane displacements over a zone of 3.15 mm x 3.15 mm are determined through the evaluation of the optical phase distribution. A theoretical solution developed for elasto-plastic materials is used to evaluate the obtained experimental results. (C) 2002 Elsevier Science Ltd. All rights reserved.
引用
收藏
页码：621 / 629
页数：9
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