Investigation of Portevin-Le Chatelier band with temporal phase analysis of speckle interferometry

Zhenyu Jiang; Qingchuan Zhang; Xiaoping Wu

doi:10.1117/12.509767

29 April 2003 Investigation of Portevin-Le Chatelier band with temporal phase analysis of speckle interferometry

Zhenyu Jiang, Qingchuan Zhang, Xiaoping Wu

Proceedings Volume 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002; (2003) https://doi.org/10.1117/12.509767
Event: Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, 2002, Beijing, China

Abstract

A new method combining temporal phase analysis with dynamic digital speckle pattern interferometry is proposed to study Portevin-Le Chatelier effect quantitatively. The principle bases on that the phase difference of interference speckle patterns is a time-dependent function related to the object deformation. The interference speckle patterns of specimen are recorded with high sampling rate while PLC effect occurs, and the 2D displacement map of PLC band and its width are obtained by analyzing the displacement of specimen with proposed method.

Citation Download Citation

Zhenyu Jiang, Qingchuan Zhang, and Xiaoping Wu "Investigation of Portevin-Le Chatelier band with temporal phase analysis of speckle interferometry", Proc. SPIE 5058, Optical Technology and Image Processing for Fluids and Solids Diagnostics 2002, (29 April 2003); https://doi.org/10.1117/12.509767

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