Using ultrasonic technique to trace the depth of natural crack
碩士 === 國立雲林科技大學 === 防災與環境工程研究所 === 95 === Normally the general mechanical metal parts might have flaw, crank and hole defect cause by long-term used, manufacture fault and environmental effect. Especially, the crack has biggest influence on structure strength, therefore it needs to precisely figure...
| Main Authors: | , |
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| Format: | Others |
| Language: | zh-TW |
| Published: |
2007
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| Online Access: | http://ndltd.ncl.edu.tw/handle/64731887679064685488 |