COMPUTER CONTROLLED METHOD FOR MEASUREMENT OFSURFACE CRACK LENGTH ON PLATE SUBJECTEDTO FATIGUE LOADING

来源期刊：中南大学学报(英文版)1997年第2期

论文作者：Chen Feng Xu Jicheng

文章页码：141 - 143

Key words：computer control; calibration; fatigue loading; nondamage detecting.

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.