Shear properties of three-dimensional woven composite reinforcements

2015 ◽  
Vol 38 (2) ◽  
pp. 244-251 ◽  
Author(s):  
Fei Sun ◽  
Yifan Zhang ◽  
Li Chen ◽  
Meiling Zhang ◽  
Ning Pan
Keyword(s):  
Three Dimensional ◽  
Woven Composite ◽  
Shear Properties ◽  
Composite Reinforcements

Locking and Stability of 3D Woven Composite Reinforcements

2014 ◽  
Vol 611-612 ◽  
pp. 292-299 ◽  
Author(s):  
Sylvain Mathieu ◽  
Philippe Boisse ◽  
Nahiene Hamila ◽  
Florent Bouillon
Keyword(s):  
Finite Element ◽  
Strain Energy ◽  
Constitutive Law ◽  
Element Formulation ◽  
Woven Composite ◽  
Anisotropic Behavior ◽  
Stabilization Procedure ◽  
Bias Extension ◽  
Deformation Modes ◽  
Composite Reinforcements

3D woven composite reinforcements preforming simulations are an unavoidable step of composite part processing. The present paper deals with thick composite fabric behavior modelling and issues arising during the numerical simulation of preforming. After the description of the independent deformation modes of initially orthotropic reinforcements, a physically motivated and invariant based hyperelastic strain energy density is introduced. This constitutive law is used to show the limitations of a classical finite element formulation in 3D fabric simulations. Tension locking is highlighted in bias extension tests and a reduced integration hexahedral finite element with specific physical hourglass stabilization is proposed. Instabilities due to the highly anisotropic behavior law, witnessed in bending dominated situations, are exposed and a stabilization procedure is initiated.

scholarly journals Mesoscopic analyses of the draping of 3D woven composite reinforcements based on macroscopic simulations

2020 ◽  
Vol 250 ◽  
pp. 112602
Author(s):  
Jie Wang ◽  
Peng Wang ◽  
Nahiene Hamila ◽  
Philippe Boisse
Keyword(s):  
Woven Composite ◽  
Composite Reinforcements

A novel multiaxial three-dimensional woven preform: Process and structure

2017 ◽  
Vol 37 (4) ◽  
pp. 247-266 ◽  
Author(s):  
Xinmiao Wang ◽  
Li Chen ◽  
Junshan Wang ◽  
Xintao Li ◽  
Zhongwei Zhang
Keyword(s):  
Cross Sections ◽  
Structural Parameters ◽  
Three Dimensional ◽  
Woven Composite ◽  
Cell Geometry ◽  
Geometry Model ◽  
End Use ◽  
Experimental Values ◽  
Composite Samples ◽  
Good Agreement

A novel multiaxial three-dimensional woven preform and the weaving technique have been developed in this study. The preform exhibits remarkable designs, which is formed by multiple layers of different yarn sets, including bias (+bias/−bias), warp, and filling, and all layers are locked by Z-yarns These layers are arranged in a rectangular fashion and the layer number and the position of bias layer can be determined by the end-use requirements. A weaving process and machine are proposed to produce the preform. The weaving technique enables the insertion of many warp layers between two opposite bias layers. The microstructure of the preform was also studied. Microscopic evidence of the microstructure reveals that the cross-sections of Z-yarn are variable along its central axis due to the lateral compression forces of adjacent yarns from different directions. On the basis of microscopic observation, a unit cell geometry model of multiaxial three-dimensional woven preform is established, and a good agreement has been obtained between the theoretical and experimental values of the structural parameters of woven composite samples.

scholarly journals Mechanical Behavior of Woven Composite Reinforcements While Forming

2002 ◽  
Vol 15 (6) ◽  
pp. 545-555 ◽  
Author(s):  
Gilles Hivet ◽  
Jean Launay ◽  
Alain Gasser ◽  
Jean Luc Daniel ◽  
Philippe Boisse
Keyword(s):  
Mechanical Behavior ◽  
Woven Composite ◽  
Composite Reinforcements
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