金属板中的声发射波传播特性分析

Analysis on propagation characteristic of acoustic emission wave in metal plate

研究了金属板中具有频散性质的声发射波的传播特性,通过测量位移和波传播的时间推导出计算公式,进而计算出声发射波在金属板中的波速、幅值衰减随时间变化的曲线。确定了声发射波在金属板中的传播特性,掌握并利用该传播特性,对实际工程具有一定的指导作用。

The acoustic emission wave of dispersion in steel plate was researched , the calculation formula was educed by measuring the displacement and wave propagation time , and thus the variation curve of wave velocity and crest value attenuation with time was figured out. The propagation characteristic of acoustic emission wave in metal plate was determined , which has an engineering application value.