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Abstract:
运用有限元方法,分析了激光参量和铝板参量对铝板中激光激励Lamb波的影响。通过建立轴对称的激光辐射模型,计算出不同激光能量下的瞬态温度场分布。研究结果表明,激光能量过高会使铝板表面损伤,应控制激光能量,使其低于材料损伤阈值。随后固定激光能量,改变铝板板厚和激光光斑半径的大小,发现光斑半径减小时,Lamb波激发率提高,频带变宽,所含的频谱成分更丰富。
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无损检测
Year: 2017
Issue: 07
Volume: 39
Page: 12-17
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 10
Affiliated Colleges: