Abstract
The calibration curves obtained using strain gages are used to predict surface crack length on plate specimen subjected to 4-point bending fatigue loading. The results shows that the proposed procedure is of high precision with the maximum error percentage being less than 6%,and it can be easily used to estimate or monitor the surface crack length under fatigue loading both in laboratory and in engineering. It is also quite meanful for nondamage detecting.
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Project supported by the Science Foundation of the Nonferrous Matels Industrial Corporation of China for Return
Synopsis of the first author Chen Feng, associate professor, born in October 1949, worked on experimental fracture mechanics in Swaden from 1990 to 1995 as a visiting scholar. Major research fields include perturbation and weight function method and its application, experimental mechanics. Currently interested in rock fracture mechanics.
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Chen, F., Xu, J. Computer controlled method for measurement of surface crack length on plate subjected to fatigue loading. J Cent. South Univ. Technol. 4, 141–143 (1997). https://doi.org/10.1007/s11771-997-0017-0
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DOI: https://doi.org/10.1007/s11771-997-0017-0