含孔洞弹性材料力学松弛时间的影响

科技视界 Pub Date : 2019-06-30 DOI:10.33493/SCIVIS.19.02.09

R. Lianngenga, L. Thangmawia

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引用次数: 0

摘要

研究了弹性波在带孔洞的弹性材料中传播时力学松弛时间的影响。得到了相速度和衰减系数，并观察了机械松弛时间的影响。研究了弹性材料在有孔洞的平面边界入射波对弹性波的反射现象。得到了反射波的振幅和能量比。数值计算了特定模型的这些比值、相速度和相应的衰减系数，并讨论了机械松弛时间的影响。

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Effect of mechanical relaxation time in elastic materials with voids

The effect of mechanical relaxation time in the elastic wave propagation in elastic materials with voids is investigated. The phase speed and the attenuation coefficients are obtained and observed the effect of mechanical relaxation time. The phenomenon of reflection of elastic waves due to the incident waves from a plane boundary of elastic materials with voids is studied. The amplitude and energy ratios of the reflected waves are obtained. Numerically these ratios, phase speeds and the corresponding attenuation coefficients are computed for a particular model and the effect of mechanical relaxation time is discussed.

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来源期刊

科技视界

自引率

0.00%

发文量

59577

期刊介绍： Science & Technology Vision is a science and technology journal supervised by the Shanghai Association for Science and Technology and sponsored by the Shanghai Science Writers Association. It takes grassroots science and education workers as readers, popularizes scientific knowledge, tracks hot issues in science and technology at home and abroad, pays attention to new developments, new technologies, and new achievements in the forefront of the science and technology community, adheres to the combination of theory and practice, popularization and exploration, integrates scientificity, knowledge, academicity, and foresight, and builds a platform and theoretical position for academic debate for the majority of science and technology workers. Science & Technology Vision has been fully included in "China National Knowledge Infrastructure", "Chinese Science and Technology Journal (VIP) Database", "Longyuan Journal Network", "Education Reading Network", and "Wanfang Database".