国防科技大学学报Issue(2)：1-6,6.DOI:10.11887/j.cn.201402001
饱和多孔热弹体界面SV波反射的松弛效应
Relaxation effects of reflection of SV waves at surface of saturated porous thermoelasticity
摘要
Abstract
Based on the Biot’s wave theory and thermoelastic theory for saturated porous medium,three relaxation factors were introduced and the generalized thermoelastic theory for saturated porous medium was developed.Reflection of SV waves on the surface of the plane was used to analyze the influence of relaxation effect on the reflection,and the expressions of the reflection coefficient for the p1 wave,p2 wave,T-wave and S-wave were derived.Numerical results were obtained and used to discuss the difference of reflection amplitude for four kinds of reflection waves among the generalized thermoelastic theory G-TE,L-S theory,and G-L theory.The effect of the relaxation time factors was also discussed.It is indicated that there is apparent effect of G-TE,L-S theory,and G-L theory on the results and it is different from p1 wave,p2 wave and S-wave.In addition,there is greater effect of relaxation time on p2 wave,and less effect on p1 wave,and the effect can be omitted on the S wave.关键词
饱和多孔介质/热弹性体/SV波/反射/松弛效应Key words
saturated porous medium/thermo-elasticity/SV wave/reflection/relaxation effect分类
建筑与水利引用本文复制引用
郑荣跃,刘干斌,唐国金..饱和多孔热弹体界面SV波反射的松弛效应[J].国防科技大学学报,2014,(2):1-6,6.基金项目
国家自然科学基金资助项目 （）
