冲击回波法检测桥梁孔道注浆密实度的ANSYS/LS-DYNA数值分析

ANSYS/LS-DYNA Numerical Analysis of Impact-Echo Method For Detecting Grouting Density of Bridge Hole

冲击回波法是以弹性波原理为基础,是桥梁孔道注浆密实度检测的新型无损检测方法。针对该方法的定量检测效果问题,采用有限元数值方法进行了模拟研究。详细介绍了一种基于ANSYS/LS-DYNA的有限元建模方法,通过孔道不同埋设深度作为变量,研究缺陷响应情况,为冲击回波检测方法的定量解译难题提供进一步的研究思路。

The Impact-Echo Method is a new non-destructive testing method based on the principle of elastic wave,which is used to detect the grouting density of bridge hole. Aiming at the problem of quantitative detection of this method,the simulation study was carried out by finite element numerical method. This paper introduces a finite element modeling method based on ANSYS/LS-DYNA,which uses different depths of the tunnel as variables. Study the defect response,further research ideas are provided for the quantitative interpretation of Impact-Echo Method.