Analytical and experimental validations of a numerical 14 band-limited Green's function approach for modelling acoustic emission waves

被引：3
|
作者：
Naber, Ramez-Robert [1 ]
Bahai, Hamid [1 ]
机构：
[1] Brunel Univ, Sch Engn & Design, Uxbridge UB8 3PH, Middx, England
来源：
ADVANCES IN ENGINEERING SOFTWARE | 2007年 / 38卷 / 11-12期
关键词：
wave propagation; acoustic emission; quantitative source characterisation; Green's function; finite element method; transient dynamic; analysis;
D O I：
10.1016/j.advengsoft.2006.08.037
中图分类号：
TP39 [计算机的应用];
学科分类号：
081203 ; 0835 ;
摘要：
Dynamic Green's functions are essential for modelling acoustic emission (AE) wave propagation and for the quantitative characterisation of AE sources. In this work, a method for evaluating the Green's function of a body using the finite element method is presented. The advantage of the proposed method is that it can be used to model realistic geometries, material properties and sources that cannot be treated analytically. The numerical results presented in this paper are compared with known analytical solutions of the Green's function for an infinite isotropic plate and also with experimental measurements of AE waves generated by known artificial AE sources (ball impact and pencil lead break). (c) 2006 Elsevier Ltd. and Civil-Comp Ltd. All rights reserved.
引用
收藏
页码：876 / 885
页数：10
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