| Numerical simulation of isopachic parameter determined by phase-stepping interferometric photoelasticity |
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| 作者姓名： | 云海 雷振坤 云大真 |
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| 作者单位： | Department of Engineering Mechanics Dalian University of Technology，Dalian 116024，Department of Engineering Mechanics Dalian University of Technology，Dalian 116024，Department of Engineering Mechanics Dalian University of Technology，Dalian 116024 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China under Grant No. 10502014. Z. |
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| 摘 要： | A phase-stepping interferometric photoelasticity method is proposed to determine whole-filed sum of principal stresses. The four phase steps are introduced by rotating quarter-wave plate and analyzer at definite optical arrangements. Light intensities and phase-stepping formula for the proposed method are derived using Jones calculus. Simulations of a circular disk under diametral compression demonstrate the feasibility of the proposed method.
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