This paper deals with the method of stress wave to measure the elastic modulus , loss modulus and their dispersion relationships against frequency of materials 摘要用应力波的方法建立一维木材动弹模量的色散关系方程，并测量和分析了两种木质材料的动弹模量与频率的色散关系。
In order to adjust the amplitude and width of the stress impulse in targets , the dependence of velocity and impactor thickness , as well as the flatness area of the wave front in targets are discussed 讨论了靶中应力波幅度和宽度的调控方法、冲击器的飞行速度与厚度的相关性、靶中应力波的平面范围。
The author discusses the stress wave reflection used to measure the building foundation through a case study . its uncertainty and some new ideas have also been considered in the paper 摘要应力波反射法判断桩身质量具有多解性，本文通过理论和典型实例对此观点进行分析和引证，以期加深对它的理解和认识。
The present thesis reviews the development process of the theory of porous media and summarizes systematically the state and major progress of the wave propagation problem in the fluid - saturated porous media 本文回顾了含液多孔介质理论的发展历程，系统地总结了液饱和多孔介质中应力波传播问题的研究现状和主要成果。
It also expounds the advantages of mixed loading explosive exploding . at the same time , the lateral and bottom fractural range of bench shooting in deep - hole of rock are tested , analyzed and calculated 同时对爆破产生的应力波、爆生气体对岩石爆破破岩的影响也作了介绍，并分析了岩石力学性质与可爆性之间的关系。
