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並列摘要
This research utilized the principle of laser reflection to form caustics to observe the crack growth. When a material subjected to a load, stress concentration near the crack peak changes the thickness and the reflection of light. A CCD image system was used to record the shadow diameter. Excel was used to establish figures for comparison. The relationships between the crack length, diameter, and stress concentration factor before crack were established.
延伸閱讀
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- 黃元政（2004）。影像多值門檻分隔之類別間變異數微分法及平行處理〔碩士論文，崑山科技大學〕。華藝線上圖書館。https://doi.org/10.6828/KSU.2004.00014
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