scholarly journals Robust characterization of crack propagation in 3D woven composites and evidences of size dependency

2019 ◽  
Vol 225 ◽  
pp. 111175
Author(s):  
Victor Médeau ◽  
Frédéric Laurin ◽  
Johann Rannou ◽  
Antoine Hurmane ◽  
Hélène Quillent ◽  
...  
Keyword(s):  
Crack Propagation ◽  
Woven Composites ◽  
Size Dependency ◽  
3D Woven Composites

Off-axis bending behaviors and failure characterization of 3D woven composites

2019 ◽  
Vol 208 ◽  
pp. 45-55 ◽  
Author(s):  
Diantang Zhang ◽  
Mengyao Sun ◽  
Xiaodong Liu ◽  
Xueliang Xiao ◽  
Kun Qian
Keyword(s):  
Woven Composites ◽  
3D Woven Composites

Experimental characterization of the bearing behavior of 3D woven composites

2017 ◽  
Vol 116 ◽  
pp. 369-376 ◽  
Author(s):  
R. Mounien ◽  
C. Fagiano ◽  
P. Paulmier ◽  
B. Tranquart ◽  
F.-X. Irisarri
Keyword(s):  
Woven Composites ◽  
Experimental Characterization ◽  
3D Woven Composites ◽  
Bearing Behavior

Microscopic residual stresses analysis and multi-objective optimization for 3D woven composites

2021 ◽  
Vol 144 ◽  
pp. 106310
Author(s):  
Qi Wang ◽  
Xufeng Yang ◽  
Haixin Zhao ◽  
Xiaowen Zhang ◽  
Guanglong Cao ◽  
...  
Keyword(s):  
Residual Stresses ◽  
Woven Composites ◽  
Multi Objective Optimization ◽  
Multi Objective ◽  
3D Woven Composites

scholarly journals Material parametrization of natural rubber based compound and characterization of crack propagation under consideration of dissipative effects

2021 ◽  
Author(s):  
Dan Pornhagen ◽  
Konrad Schneider ◽  
Markus Stommel
Keyword(s):  
Energy Dissipation ◽  
Crack Propagation ◽  
Natural Rubber ◽  
Experimental Tests ◽  
Material Behavior ◽  
Prony Series ◽  
Material Forces ◽  
Cracking Behavior ◽  
Dissipative Effects

AbstractMost concepts to characterize crack propagation were developed for elastic materials. When applying these methods to elastomers, the question is how the inherent energy dissipation of the material affects the cracking behavior. This contribution presents a numerical analysis of crack growth in natural rubber taking energy dissipation due to the visco-elastic material behavior into account. For this purpose, experimental tests were first carried out under different load conditions to parameterize a Prony series as well as a Bergström–Boyce model with the results. The parameterized Prony series was then used to perform numerical investigations with respect to the cracking behavior. Using the FE-software system ANSYS and the concept of material forces, the influence and proportion of the dissipative components were discussed.

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

Comparison of progressive damage simulation of 3D woven composites between voxel and conformal discretization models

2021 ◽  
pp. 103860
Author(s):  
Tao Zheng ◽  
Licheng Guo ◽  
Ziheng Tang ◽  
Tongtong Wang ◽  
Zhixing Li
Keyword(s):  
Woven Composites ◽  
Progressive Damage ◽  
3D Woven Composites ◽  
Damage Simulation

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
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