Finite element analysis for damage monitoring of glass fiber epoxy composites via the piezoelectric method

被引：3

作者：

Hwang, S. K. ^{[1
]}

Hwang, H. Y. ^{[1
]}

机构：

[1] Andong Natl Univ, Dept Mech Design Engn, Andong Si 760749, Gyeongsangbuk D, South Korea

来源：

COMPOSITE STRUCTURES | 2014年 / 115卷

基金：

新加坡国家研究基金会;

关键词：

Finite element analysis; Piezoelectric method; Damage monitoring; Glass fiber epoxy composites; ADHESIVE JOINTS; CRACK PROBLEMS; RELIABILITY; LENGTH;

D O I：

10.1016/j.compstruct.2014.04.020

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

This study conducted a finite element analysis of the piezoelectric damage monitoring of unidirectional glass fiber epoxy composites to estimate the electric charge signals from the composite materials against the external load or the internal crack length. To verify the results of the finite element analysis, the calculated electric charges were compared with the results of a previous research. In addition, the crack length during Mode I fatigue tests of the DCB specimen was estimated and compared with the measured data. The estimated electric charge signals from the finite element analyses showed tendency similar to that of the measured ones, and could predict the crack propagation. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：69 / 74

页数：6

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