PRELIMINARY EVALUATION : THE INDENTATION METHOD COMBINED WITH A RADIAL INTERFEROMETER FOR RESIDUAL STRESS MEASUREMENT
PRELIMINARY EVALUATION : THE INDENTATION METHOD COMBINED WITH A RADIAL INTERFEROMETER FOR RESIDUAL STRESS MEASUREMENT
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初步评估：压痕法结合径向干涉仪进行残余应力测量
DOI：
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发表时间：
2003
期刊：
影响因子：
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通讯作者：
M. Cavaco
中科院分区：
文献类型：
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作者：
R. Suterio;Armando A. Gonçalves;M. Cavaco
This paper presents a combined system based on electronic speckle pattern interferometry (ESPI) and the indentation method to determine residual stresses in ductile materials. The system allows the measurement of the radial in-plane displacement field generated when a specimen subjected to residual stresses suffers local plasticity. This novel approach for measuring residual stresses has the advantage of being nondestructive and can be easily applied to in situ tests. The description of the combined system is followed by the presentation of preliminary results which illustrate the ability of this new technique to identify principal residual stresses and their respective principal directions.
