Recording caustic images by phase-shifting digital holography

Kenichi Sakaue; Shinichi Suzuki; Masahisa Takashi

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Recording caustic images by phase-shifting digital holography

机译：Recording caustic images by phase-shifting digital holography

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摘要

Phase-shifting digital holography is applied to record the caustics of a stationary crack at arbitrary distances. The stress intensity factors of the crack are measured from the reconstructed images of the caustics. The measurement results show that the stress intensity factors are almost constant in the region where the initial curve radius, i.e., distance from the crack tip, is greater than half the specimen thickness. In addition, the stress intensity factors decrease in a three-dimensional stress field. These results correspond to those by Rosakis and Ravi-Chandar. This confirms that this method is applicable to measure the stress intensity factor of cracks.

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来源
《Optical Engineering》 |2006年第11期|115802-1-115802-4-0|共4页
作者
Kenichi Sakaue; Shinichi Suzuki; Masahisa Takashi;
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作者单位

Aoyama Gakuin University Department of Mechanical Engineering 5-10-1 Fuchinobe, Sagamihara-shi Kanagawa, 229-8558, Japan;

nw.med.navy.mil;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类光学仪器;
关键词
phase-shifting digital holography; caustic method; stress intensity factor; fracture mechanics;

Recording caustic images by phase-shifting digital holography

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