Modeling the response, strength and degradation of 3D woven composites subjected to high rate loading

2012 ◽  
Vol 94 (5) ◽  
pp. 1590-1604 ◽  
Author(s):  
M. Pankow ◽  
A.M. Waas ◽  
C.F. Yen ◽  
S. Ghiorse
Keyword(s):  
Response Strength ◽  
High Rate ◽  
Woven Composites ◽  
3D Woven Composites ◽  
High Rate Loading

scholarly journals Open hole quasi-static and fatigue characterisation of 3D woven composites

2015 ◽  
Vol 131 ◽  
pp. 765-774 ◽  
Author(s):  
S. Dai ◽  
P.R. Cunningham ◽  
S. Marshall ◽  
C. Silva
Keyword(s):  
Woven Composites ◽  
Open Hole ◽  
3D Woven Composites

EXPERIMENTALLY VALIDATED SIMULATIONS OF BLIND HOLE DRILLING IN 3D WOVEN CARBON/EPOXY COMPOSITE WITH PROCESSING-INDUCED RESIDUAL STRESSES

2021 ◽  
Author(s):  
ARTURO LEOS ◽  
KOSTIANTYN VASYLEVSKYI ◽  
IGOR TSUKROV ◽  
TODD GROSS ◽  
BORYS DRACH
Keyword(s):  
Residual Stresses ◽  
Epoxy Matrix ◽  
Mechanical Performance ◽  
Matrix Cracking ◽  
Woven Composites ◽  
Hole Drilling ◽  
Blind Hole ◽  
Matrix Cracks ◽  
Numerical Predictions ◽  
3D Woven Composites

Manufacturing-induced residual stresses in carbon/epoxy 3D woven composites arise during cooling after curing due to a large difference in the coefficients of thermal expansion between the carbon fibers and the epoxy matrix. The magnitudes of these stresses appear to be higher in composites with high throughthickness reinforcement and in some cases are sufficient to lead to matrix cracking. This paper presents a numerical approach to simulation of development of manufacturing-induced residual stresses in an orthogonal 3D woven composite unit cell using finite element analysis. The proposed mesoscale modeling combines viscoelastic stress relaxation of the epoxy matrix and realistic reinforcement geometry (based on microtomography and fabric mechanics simulations) and includes imaginginformed interfacial (tow/matrix) cracks. Sensitivity of the numerical predictions to reinforcement geometry and presence of defects is discussed. To validate the predictions, blind hole drilling is simulated, and the predicted resulting surface displacements are compared to the experimentally measured values. The validated model provides an insight into the volumetric distribution of residual stresses in 3D woven composites. The presented approach can be used for studies of residual stress effects on mechanical performance of composites and strategies directed at their mitigation.

Modeling strategies of 3D woven composites: A review

2011 ◽  
Vol 93 (8) ◽  
pp. 1947-1963 ◽  
Author(s):  
Mahmood Ansar ◽  
Wang Xinwei ◽  
Zhou Chouwei
Keyword(s):  
Woven Composites ◽  
3D Woven Composites

Mesh generation and geometrical modelling of 3D woven composites with variable tow cross-sections

2012 ◽  
Vol 51 (1) ◽  
pp. 103-111 ◽  
Author(s):  
E. Potter ◽  
S.T. Pinho ◽  
P. Robinson ◽  
L. Iannucci ◽  
A.J. McMillan
Keyword(s):  
Cross Sections ◽  
Mesh Generation ◽  
Woven Composites ◽  
Geometrical Modelling ◽  
3D Woven Composites

An automated procedure for the generation and conformal discretization of 3D woven composites RVEs

2017 ◽  
Vol 180 ◽  
pp. 955-971 ◽  
Author(s):  
Badadjida Wintiba ◽  
Bernard Sonon ◽  
Karim Ehab Moustafa Kamel ◽  
Thierry J. Massart
Keyword(s):  
Woven Composites ◽  
3D Woven Composites
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