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超声波引起固体微裂纹局部发热的理论计算 被引量:14

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摘要 基于微裂纹在超声波作用下的局部发热现象 ,已形成一种新型无损检测技术 ,即超声红外检测技术 .然而 ,迄今为止 ,尚未建立有效的理论模型对其局部发热机制进行定量计算 .文中从三维弹性动力学方程出发 ,基于罚函数及界面本构摩擦模型 ,以节点 单元法为接触搜索算法 ,采用有限元数值计算方法 ,模拟了一含有微裂纹平板中的波动传播过程 。
出处 《自然科学进展》 北大核心 2004年第6期628-634,共7页
基金 国家自然科学基金资助项目 (批准号 :1 0 1 740 38)
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参考文献19

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二级参考文献6

  • 1Favro L D, Han X Y, Ouyang Z, et al. Therrnosonic imaging of cracks and delarninations. Progress in Natural Science, 2001, 11 : 133-- 136.
  • 2Rantala J, Wu D, Busse G. Amplitude-modulated lock-in vibrothermography for NDE of polymers and composites. Research in Non-destructive evaluation, 1996,7: 215--228.
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引证文献14

二级引证文献52

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