Wave finite elements for low and mid-frequency description of coupled structures with damage

被引：62

作者：

Ichchou, M. N. ^{[1
]}

Mencik, J. -M. ^{[2
]}

Zhou, W. ^{[1
]}

机构：

[1] Ecole Cent Lyon, LTDS, F-69134 Ecully, France

[2] Univ Tours, ENI Val Loire, LMR, F-41034 Blois, France

来源：

COMPUTER METHODS IN APPLIED MECHANICS AND ENGINEERING | 2009年 / 198卷 / 15-16期

关键词：

Wave finite element method; Diffusion matrix; Lagrange multipliers; Non-destructive testing; GUIDED-WAVES; PROPAGATION; FORMULATION; SCATTERING; MOTION;

D O I：

10.1016/j.cma.2008.11.024

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This paper focuses on wave propagation in complex elastic structures along with a precise account of guided waves. A numerical finite element based approach named wave finite element (WFE) is further developed. Diffusion matrix prediction model (DMM) through a full numerical scheme is proposed and extended. The applicability of the WFE for the low and mid-frequency description of coupled systems is considered. Analysis of coupled structures through a notch is also treated numerically and the numerical experiments given prove the interest of the WFE for structural wave studies such as damage detection through guided waves. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：1311 / 1326

页数：16

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