Other parameters of stress wave such as particle velocity, stress etc were also calculated by Lagrangian analysis method when the strain rate of granite is ranged from 10 3 to 10 4 s -1 . The laws of stress wave propagation were affirmed in this experiments and dynamic Young′s modulus of granite was calculated.
Based on the technical difficulties in data acquisition, processing and interpretation, especially the difficulties in acquisition stage, combined with the feasibility and present situation in acquisition technology research, started from wave propagation theory, this article studies the absorption and attenuation of the effective wave and gets three basic recognitions.
Prolate Spheroidal Wave Functions (PSWFs) are a well-studied subject with applications in signal processing, wave propagation, antenna theory, etc.
This transformation is particularly useful for the research on wave propagation in acoustic waveguide.
For wave propagation in dispersive media, the arrival time of the acoustic emission signal to the sensor is dependent on the setting of the threshold voltage, which results in the inaccuracy of the acoustic emission location.
The study of wave propagation in periodic systems is at the frontiers of physics, from fluids to condensed matter physics, and from photonic crystals to Bose-Einstein condensates.
In optics, a typical example of periodic system is a closely-spaced waveguide array, in which collective behavior of wave propagation exhibits many intriguing phenomena that have no counterpart in homogeneous media.