| 超声波在各向同性固体中传播的数值模拟 |
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| 引用本文： | 肖开丰,宋文爱.超声波在各向同性固体中传播的数值模拟[J].计算机仿真,2008,25(9). |
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| 作者姓名： | 肖开丰 宋文爱 |
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| 作者单位： | 中北大学信息与通信工程学院,山西太原,030051 |
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| 摘 要： | 介绍以应用动量守恒和应力-应变关系为各向同性弹性介质进行微变形建立超声波传播方程,并利用一种有限元方法和差分法,分析超声波(P波)在各向问性介质中传播,及在裂缝上的散射结果.并且通过计算机程序模拟二维超声波的传播,散射的数值模拟与几何理论结果是相符合的.因此超声检测仿真软件是可以预测超卢检测过程中的波形.超声探头的建模发展趋势是利用FDM和FEM方法研究超声检测的仿真软件,分析结果将广泛应用到检测过程中.
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| 关 键 词： | 有限元 超声波 波传播 |
Numerical Simulation of the Propagation of Ultrasonic Wave in an Isotropic Solid |
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| XIAO Kai-feng,SONG Wen-ai.Numerical Simulation of the Propagation of Ultrasonic Wave in an Isotropic Solid[J].Computer Simulation,2008,25(9). |
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| Authors: | XIAO Kai-feng SONG Wen-ai |
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| Affiliation: | XIAO Kai-feng,SONG Wen-ai(School of Information , Communication Engineering,North University of China,Taiyuan Shanxi 030051,China) |
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| Abstract: | This paper presents the application of the equations of conservation of momentum and the stress-strain relations for an isotropic elastic medium undergoing infinitesimal deformation to establish an ultrasonic wave propagation equation,and uses the finite element method(FEM) and the difference method for analysiing ultrasonic(P-wave)wave propagation in isotropic media,and the cracks scattering results.And the two-dimensional ultrasonic wave propagation has been simulated by computer program and the scattered... |
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| Keywords: | Finite element Ultrasonic wave Propagation |
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