Finite element analysis of initial imperfection effects on kinking failure of unidirectional glass fiber-reinforced polymer composites

被引:6
作者
Sun, Wei [1 ]
Vassilopoulos, Anastasios P. [1 ]
Keller, Thomas [1 ]
机构
[1] Ecole Polytech Fed Lausanne, Composite Construct Lab, Stn 16, Batiment BP, CH-1015 Lausanne, Switzerland
基金
瑞士国家科学基金会;
关键词
Kinking failure; Birth-and-death method; Finite element; Fiber microbuckling; Initial imperfections; LAMINATED COMPOSITES; COMPRESSIVE FAILURE; PREDICTION; SIMULATION; BEHAVIOR; PANELS; MODEL;
D O I
10.1016/j.compstruct.2018.07.010
中图分类号
O3 [力学];
学科分类号
08 ; 0801 ;
摘要
The compressive kinking behavior of non-slender unidirectional glass fiber-reinforced polymer (GFRP) specimens has been analyzed by finite element (FE) models. The experimentally observed imperfections, including the initial fiber waviness throughout the entire specimen volume and the scattered resin/interface defects, were taken into account in the FE models. The birth-and-death method was employed to simulate the progressive damage to the material. The consideration of the coexistence of initial fiber waviness and initial resin/interface defects was found to be essential for accurate modeling of the kinking failure process. Kinking was initiated due to the disproportional increase of the fiber microbuckling at the locations of initial defects. The numerically obtained peak load, fiber microbuckling amplitudes, kink band angle and width, and compressive strain concentrations at the kink band edges were well predicted compared to the experimental results. The number of defects was less significant than the fact that defects existed that served as initiation points of the kink band formation.
引用
收藏
页码:50 / 59
页数:10
相关论文
共 22 条
[1]  
[Anonymous], 2006, High strength glass fibers: technical paper
[2]  
ASTM, 2010, D69510 ASTM
[3]   Experimental and analytical study on fiber-kinking failure mode of laminated composites [J].
Ataabadi, A. Kabiri ;
Hosseini-Toudeshky, H. ;
Rad, S. Ziaei .
COMPOSITES PART B-ENGINEERING, 2014, 61 :84-93
[4]   An Improved Model for Fiber Kinking Analysis of Unidirectional Laminated Composites [J].
Ataabadi, Abdulreza Kabiri ;
Ziaei-Rad, Saeed ;
Hosseini-Toudeshky, Hossein .
APPLIED COMPOSITE MATERIALS, 2011, 18 (03) :175-196
[5]   Prediction of progressive failure in multidirectional composite laminated panels [J].
Basu, Shiladitya ;
Waas, Anthony M. ;
Ambur, Damodar R. .
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 2007, 44 (09) :2648-2676
[6]   Fatigue of hybrid glass/carbon composites: 3D computational studies [J].
Dai, Gaoming ;
Mishnaevsky, Leon, Jr. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2014, 94 :71-79
[7]   Finite element simulation of the fiber-matrix debonding in polymer composites produced by a sliding indentor:: Part I -: Normally oriented fibers [J].
Friedrich, K ;
Goda, T ;
Váradi, K ;
Wetzel, B .
JOURNAL OF COMPOSITE MATERIALS, 2004, 38 (18) :1583-1606
[8]   Failure analysis of quasi-isotropic CFRP laminates under high strain rate compression loading [J].
Guedes, R. M. ;
de Moura, M. F. S. F. ;
Ferreira, F. J. .
COMPOSITE STRUCTURES, 2008, 84 (04) :362-368
[9]   Micro-mechanical modelling of shear-driven fibre compressive failure and of fibre kinking for failure envelope generation in CFRP laminates [J].
Gutkin, R. ;
Pinho, S. T. ;
Robinson, P. ;
Curtis, P. T. .
COMPOSITES SCIENCE AND TECHNOLOGY, 2010, 70 (08) :1214-1222
[10]  
Henrici-Olive G, 1987, MESOPHASE CONCEPT CO