Journal Published Online: 12 March 2009
Volume 37, Issue 3

Development and Preliminary Testing of a Crack Detection Sensor for Crack Velocity Measurement of an Edge-Notched Disk

CODEN: JTEVAB

Abstract

In the present study, a crack velocity measuring system is developed based on the electrical method. The proposed crack velocity measuring system and an available crack gage system were attached on opposite sides of an edge-notched granite disk specimen to measure the velocity of crack propagation on each side of the surface crack. Three sensing materials were assessed for their applicability in crack detection. It was found that the sensing materials have a strong effect on the measurement of the crack velocity. Several observations on crack propagation and some aspects of the proposed measuring technique are discussed in this study.

Author Information

Hsieh, Chi-Tai
Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.
Wang, Chein-Lee
Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.
Wang, Shih-Hui
Department of Resources Engineering, National Cheng Kung University, Tainan, Taiwan, R.O.C.
Pages: 9
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Details
Stock #: JTE102071
ISSN: 0090-3973
DOI: 10.1520/JTE102071