Progressive damage and delamination in plain weave S-2 glass/SC-15 composites under quasi-static punch-shear loading

2007 ◽  
Vol 78 (2) ◽  
pp. 182-196 ◽  
Author(s):  
J.R. Xiao ◽  
B.A. Gama ◽  
J.W. Gillespie
Keyword(s):  
Shear Loading ◽  
Progressive Damage ◽  
Plain Weave

Progressive Damage and Delamination in Plain Weave S-2 Glass/SC-15 Composites Under Quasi-Static Punch Shear Loading

Materials ◽  
2005 ◽  
Author(s):  
J. R. Xiao ◽  
B. A. Gama ◽  
J. W. Gillespie
Keyword(s):  
Composite Laminates ◽  
Damage Mechanics ◽  
Damage Model ◽  
Shear Loading ◽  
Progressive Damage ◽  
Plain Weave ◽  
Composite Damage ◽  
Layer Composite ◽  
Wide Range ◽  
Extent Of Damage

Quasi-static punch-shear tests are carried out on plain weave (PW) S-2 glass/SC-15 epoxy composite laminates with a right circular cylinder punch to identify the sequence and extent of damage and the corresponding displacements at which they occur for a wide range of laminate thicknesses. Two different support spans of 25.4 mm (1 in) and 101.6 mm (4 in) diameter with different layers (0.6 mm ply thickness) of composite laminates are tested under quasi-static loading to identify compression-shear and tension-shear dominated modes of damage. Numerical punch shear experiments are conducted using LS-DYNA 970. The numerical modeling is carried out using a newly developed composite damage model, namely MAT 162, which has been incorporated into LS-DYNA. MAT 162 uses damage mechanics principle for progressive damage and material degradation. Input data required in MAT 162 have been calibrated to match the experimental results of 22-layer composite plate of both spans (25.4 mm and 101.6 mm). The calibrated material properties have been used to simulate other thicknesses, and the simulated results show good agreement with experiment results. It has been found that the dominant damage mechanisms are delamination and fiber breakage due to shear and tension.

Strength prediction of woven composite rings using progressive damage modeling

2020 ◽  
Vol 29 (6) ◽  
pp. 851-873
Author(s):  
H Khayyam Rayeni ◽  
AH Mazaheri ◽  
F Taheri-Behrooz
Keyword(s):  
Representative Volume Element ◽  
Stiffness Matrix ◽  
Volume Element ◽  
Progressive Damage ◽  
Equivalent Stiffness ◽  
Woven Composite ◽  
Damage Initiation ◽  
Plain Weave ◽  
Representative Volume ◽  
Composite Pipe

The ultimate failure of the woven composite pipes has been investigated using progressive damage modeling. The composite pipe specimens were made of (E) glass plain weave fabrics according to the ASTM D2290 standard. The hoop strength of these specimens has been obtained from the tensile tests. The damage initiation and propagation of composite pipe have been predicted by a numerical multi-scale method. For this purpose, the damage of the yarns and resin of the plain weave laminate was investigated by modeling a representative volume element. Then, the macroscopic stresses and strains of the representative volume element were calculated to obtain the equivalent stiffness matrix using suitable boundary conditions. Then, the mechanical properties of the laminate and material properties degradation coefficients were derived by this equivalent stiffness matrix. Hashin and Von Mises failure criteria were utilized in USDLFD subroutine to predict the damage initiation of the yarn and resin in the representative volume element, respectively. The sudden degradation method has been used to investigate the damage propagation in these constituents. Then, the woven composite ring was modeled in ABAQUS software and its ultimate strength was predicted by UMAT subroutine using obtained degradation coefficients of the representative volume element from the previous step. Finally, the numerical results were compared with the experimental data which show good agreement between the results.

Characteristic progressive damage modes in a plain weave textile composite under multiaxial loads

2016 ◽  
Vol 51 (11) ◽  
pp. 1539-1556 ◽  
Author(s):  
W Ross McLendon ◽  
John D Whitcomb
Keyword(s):  
Damage Evolution ◽  
Progressive Failure ◽  
Damage Model ◽  
Cohesive Zone Modeling ◽  
Effect Of Temperature ◽  
Progressive Damage ◽  
Textile Composite ◽  
Effective Response ◽  
Thermally Induced ◽  
Plain Weave

A finite element-based model was developed to predict progressive damage evolution within a plain weave textile composite subjected to various combinations of in-plane tension and shear. Cracking in the tows, matrix, and interfaces was accounted for through cohesive zone modeling. Shear damage in the tows was accounted for through a continuum damage model. The damage behavior in the tows was stochastic in nature with properties determined from prior investigations of composite microstructures that included randomness in fiber positions. The predicted progressive damage evolution was found to qualitatively match well with experimental observations performed on similar material systems. The effect of temperature change, which modifies the thermally induced stresses in the tows as well as the apparent strength of the tows (due to changes in thermally induced microstresses at the fiber–matrix scale) was examined. Finally, the progressive failure responses under different loadings were compared to identify common characteristic behaviors. The effect of these characteristic behaviors on the textile’s effective response was investigated along with approaches to incorporate the behaviors into a structural scale progressive failure model.

Progressive Damage Approach to Simulating Low Velocity Impact Response of Plain Weave C/SiC Composites

2010 ◽  
Vol 118-120 ◽  
pp. 241-245 ◽  
Author(s):  
Liu Ding Chen ◽  
Xiao Yan Tong ◽  
Xiang Zheng ◽  
Lei Jiang Yao
Keyword(s):  
Constitutive Model ◽  
Time History ◽  
Composite Plates ◽  
Experimental Results ◽  
Low Velocity Impact ◽  
Progressive Damage ◽  
Low Velocity ◽  
Velocity Impact ◽  
Plain Weave ◽  
User Subroutine

Based on progressive damage theory, a 3D laminated model with an orthotropic property in plane was established to simulate the response of plain weave carbon fiber reinforced silicon carbide(C/SiC) ceramic matrix composites(CMC) under low velocity impact(LVI). Intra-layer damage and inter-layer damage were taken into account, respectively. Three scalar damage variables, associated with the degradation of warp modulus, weft modulus and shear modulus, respectively, were proposed to characterize intra-layer damage evolutions. The intra-layer constitutive model was implemented into MSC.Dytran, via its user subroutine EXFAIL1. The potential delamination region was considered as a discrete cohesive zone. Three vector spring elements were placed into every two adjacent nodes to simulate the inter-layer joints. A scalar damage variables, associated with the degradation of the three vector spring elements, were brought forward to characterize the inter-layer damage evolutions. The inter-layer constitutive model was implemented into MSC.Dytran, via its user subroutine EXELAS. Damage area, indentation depth of C/SiC composite plates and time history of impact force were obtained to compare with experimental results. The numerical results show overall good agreement with experimental results.

Progressive damage in satin weave carbon/epoxy composites under quasi-static punch-shear loading

2015 ◽  
Vol 41 ◽  
pp. 82-91 ◽  
Author(s):  
Yuan Liang ◽  
Hai Wang ◽  
Costas Soutis ◽  
Tristan Lowe ◽  
Robert Cernik
Keyword(s):  
Shear Loading ◽  
Epoxy Composites ◽  
Progressive Damage

Progressive Damage Analysis of Plain Weave Fabric CFRP Orthogonal Grid Shell Under Bending Load

2019 ◽  
Vol 47 (4) ◽  
pp. 256-265
Author(s):  
Sung June Lim ◽  
Sang Min Baek ◽  
Min Sung Kim ◽  
Min Young Park ◽  
Chan Yik Park
Keyword(s):  
Progressive Damage ◽  
Damage Analysis ◽  
Plain Weave ◽  
Weave Fabric ◽  
Grid Shell ◽  
Bending Load ◽  
Orthogonal Grid

Failure Behavior of Plain Weave Fabric Laminates Under In-Plane Shear Loading

1994 ◽  
Vol 16 (1) ◽  
pp. 3 ◽  
Author(s):  
WS Johnson ◽  
JE Masters ◽  
TK O'Brien ◽  
NK Naik ◽  
VK Ganesh
Keyword(s):  
Shear Loading ◽  
Failure Behavior ◽  
Plane Shear ◽  
Plain Weave ◽  
Weave Fabric
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