Interface damage modeled by spring boundary conditions for in-plane elastic waves

被引：35

作者：

Golub, Mikhail V. ^{[1
]}

Bostrom, Anders ^{[2
]}

机构：

[1] Kuban State Univ, Inst Math Mech & Informat, Krasnodar 350040, Russia

[2] Chalmers, Dept Appl Mech, SE-41296 Gothenburg, Sweden

来源：

WAVE MOTION | 2011年 / 48卷 / 02期

关键词：

Elastic waves; Spring boundary condition; Layered composite; Crack; Diffraction; Boundary integral equation method; Delamination; Cracks distribution; LAYERED ANISOTROPIC PLATE; PERIODIC ARRAY; TRANSMISSION; REFLECTION; SOLIDS; CRACKS; PROPAGATION; SCATTERING;

D O I：

10.1016/j.wavemoti.2010.09.003

中图分类号：

O42 [声学];

学科分类号：

070206 ; 082403 ;

摘要：

In-plane elastic wave propagation in the presence of a damaged interface is investigated. The damage is modeled as a distribution of small cracks and this is transformed into a spring boundary condition. First the scattering by a single interface crack is determined explicitly in the low frequency limit for the case of a plane wave normally incident to the interface. The transmission at an interface with a random distribution of small cracks is then determined and is compared to periodically distributed cracks. The cracked interface is then described by a distributed spring boundary condition. As an illustration the dispersion relation of the first modes in a thick plate with a damaged interface in the middle is given. (C) 2010 Elsevier RV. All rights reserved.

引用

页码：105 / 115

页数：11

共 19 条

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