Simplified modeling method of impact damage for numerical simulation of Lamb wave propagation in quasi-isotropic composite structures

被引：22

作者：

Deng, Peiwen ^{[1
]}

Saito, Osamu ^{[1
]}

Okabe, Yoji ^{[1
]}

Soejima, Hideki ^{[2
]}

机构：

[1] Univ Tokyo, Inst Ind Sci, Meguro Ku, 4-6-1 Komaba, Tokyo 1538505, Japan

[2] SUBARU Corp, Aerosp Co, 1-1-11 Yonan, Utsunomiya, Tochigi 3208564, Japan

来源：

COMPOSITE STRUCTURES | 2020年 / 243卷

关键词：

Ultrasonics; Numerical analysis; Composite structures; Impact damage modeling; SENSOR PLACEMENT; OPTIMIZATION;

D O I：

10.1016/j.compstruct.2020.112150

中图分类号：

O3 [力学];

学科分类号：

08 ; 0801 ;

摘要：

In this paper, we present our investigation of impact damage modeling in a quasi-isotropic CFRP plate in which guided Lamb waves propagate. Because impact damages in CFRP structures consist of multiple microscopic damages, such as delamination, shear cracks, and transverse cracks, it is difficult to precisely model the impact damages for FEM analysis. However, in order to investigate the SHM systems to detect impact damages, we need to model various kinds of impact damages easily. Therefore, we attempt to establish a simple modeling method of impact damages. When the wavelength of a Lamb wave is much longer than the microscopic damages, we can assume the impact-damaged area as a homogeneous region with the stiffness degradation. The benefit of this model is to reduce the time to construct FEM models. In particular, we can easily set several damages in various positions of the structure.

引用

页数：12

共 21 条

[1] Prediction of impact-induced delamination in cross-ply composite laminates using cohesive interface elements [J].

Aymerich, F. ;

Dore, F. ;

Priolo, P. .

COMPOSITES SCIENCE AND TECHNOLOGY, 2008, 68 (12) :2383-2390

[2] Simulation of multiple delaminations in impacted cross-ply laminates using a finite element model based on cohesive interface elements [J].

Aymerich, F. ;

Dore, F. ;

Priolo, P. .

COMPOSITES SCIENCE AND TECHNOLOGY, 2009, 69 (11-12) :1699-1709

[3] Numerical analysis on the interaction of guided Lamb waves with a local elastic stiffness reduction in quasi-isotropic composite plate structures [J].

Basri, R ;

Chiu, WK .

COMPOSITE STRUCTURES, 2004, 66 (1-4) :87-99

[4]

Bond R, 2014, STRUCTURAL HLTH MONI

[5] Low velocity impact modeling in composite laminates capturing permanent indentation [J].

Bouvet, C. ;

Rivallant, S. ;

Barrau, J. J. .

COMPOSITES SCIENCE AND TECHNOLOGY, 2012, 72 (16) :1977-1988

[6]

Cramer KE, 2016, P 30 C INT COUNC AER

[7]

Edwards C, 1993, REV PROG QUANTITATIV, P539

[8]

Frecker MI, 2003, J INTEL MAT SYST STR, V14, P207, DOI [10.1177/1045389X03031062, 10.1177/104538903031062]

[9]

Gao H, 2006, AIP CONF PROC, V820, P1687

[10] Optimal placement of sensors for structural health monitoring using improved genetic algorithms [J].

Guo, HY ;

Zhang, L ;

Zhang, LL ;

Zhou, JX .

SMART MATERIALS AND STRUCTURES, 2004, 13 (03) :528-534

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