Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method

Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method

A three-dimensional spectral element method (SEM) was developed for analysis of Lamb wave propagation in composite laminates containing a delamination. SEM is more efficient in simulating wave propagation in structures than conventional finite element method (FEM) because of its unique diagonal form...

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Main Authors: Fucai Li, Haikuo Peng, Xuewei Sun, Jinfu Wang, Guang Meng
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:Mathematical Problems in Engineering
Online Access:http://dx.doi.org/10.1155/2012/659849
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spelling doaj-ea9bcbff0c5449828d4f06b15bbdd5bd2020-11-24T23:56:11ZengHindawi LimitedMathematical Problems in Engineering1024-123X1563-51472012-01-01201210.1155/2012/659849659849Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element MethodFucai Li0Haikuo Peng1Xuewei Sun2Jinfu Wang3Guang Meng4State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, ChinaState Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, ChinaA three-dimensional spectral element method (SEM) was developed for analysis of Lamb wave propagation in composite laminates containing a delamination. SEM is more efficient in simulating wave propagation in structures than conventional finite element method (FEM) because of its unique diagonal form of the mass matrix. Three types of composite laminates, namely, unidirectional-ply laminates, cross-ply laminates, and angle-ply laminates are modeled using three-dimensional spectral finite elements. Wave propagation characteristics in intact composite laminates are investigated, and the effectiveness of the method is validated by comparison of the simulation results with analytical solutions based on transfer matrix method. Different Lamb wave mode interactions with delamination are evaluated, and it is demonstrated that symmetric Lamb wave mode may be insensitive to delamination at certain interfaces of laminates while the antisymmetric mode is more suited for identification of delamination in composite structures.http://dx.doi.org/10.1155/2012/659849
collection DOAJ
language English
format Article
sources DOAJ
author Fucai Li
Haikuo Peng
Xuewei Sun
Jinfu Wang
Guang Meng
spellingShingle Fucai Li
Haikuo Peng
Xuewei Sun
Jinfu Wang
Guang Meng
Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method
Mathematical Problems in Engineering
author_facet Fucai Li
Haikuo Peng
Xuewei Sun
Jinfu Wang
Guang Meng
author_sort Fucai Li
title Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method
title_short Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method
title_full Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method
title_fullStr Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method
title_full_unstemmed Wave Propagation Analysis in Composite Laminates Containing a Delamination Using a Three-Dimensional Spectral Element Method
title_sort wave propagation analysis in composite laminates containing a delamination using a three-dimensional spectral element method
publisher Hindawi Limited
series Mathematical Problems in Engineering
issn 1024-123X
1563-5147
publishDate 2012-01-01
description A three-dimensional spectral element method (SEM) was developed for analysis of Lamb wave propagation in composite laminates containing a delamination. SEM is more efficient in simulating wave propagation in structures than conventional finite element method (FEM) because of its unique diagonal form of the mass matrix. Three types of composite laminates, namely, unidirectional-ply laminates, cross-ply laminates, and angle-ply laminates are modeled using three-dimensional spectral finite elements. Wave propagation characteristics in intact composite laminates are investigated, and the effectiveness of the method is validated by comparison of the simulation results with analytical solutions based on transfer matrix method. Different Lamb wave mode interactions with delamination are evaluated, and it is demonstrated that symmetric Lamb wave mode may be insensitive to delamination at certain interfaces of laminates while the antisymmetric mode is more suited for identification of delamination in composite structures.
url http://dx.doi.org/10.1155/2012/659849
work_keys_str_mv AT fucaili wavepropagationanalysisincompositelaminatescontainingadelaminationusingathreedimensionalspectralelementmethod
AT haikuopeng wavepropagationanalysisincompositelaminatescontainingadelaminationusingathreedimensionalspectralelementmethod
AT xueweisun wavepropagationanalysisincompositelaminatescontainingadelaminationusingathreedimensionalspectralelementmethod
AT jinfuwang wavepropagationanalysisincompositelaminatescontainingadelaminationusingathreedimensionalspectralelementmethod
AT guangmeng wavepropagationanalysisincompositelaminatescontainingadelaminationusingathreedimensionalspectralelementmethod
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