Consistent mesoscopic mechanical behaviour model for woven composite reinforcements in biaxial tension

2008 ◽  
Vol 39 (2) ◽  
pp. 345-361 ◽  
Author(s):  
Gilles Hivet ◽  
Philippe Boisse
Keyword(s):  
Mechanical Behaviour ◽  
Biaxial Tension ◽  
Woven Composite ◽  
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 Draping of Textile Composite Reinforcements: Continuous and Discrete Approaches

2007 ◽  
Vol 16 (4) ◽  
pp. 096369350701600 ◽  
Author(s):  
P. Boisse ◽  
N. Hamila ◽  
F. Helenon ◽  
Y. Aimene ◽  
T. Mabrouki
Keyword(s):  
Finite Elements ◽  
Biaxial Tension ◽  
Textile Composite ◽  
Plane Shear ◽  
Multiscale Materials ◽  
Specific Behaviour ◽  
Unit Cells ◽  
Woven Reinforcement ◽  
Composite Reinforcements

The textile reinforcements used for composites are multiscale materials. A fabric is made of woven yarns themselves composed of thousand of juxtaposed fibres. For the simulation of the draping of these textile reinforcements several families of approaches can be distinguished in function of the level of the modelling. The continuous approaches consider the fabric as a continuum with a specific behaviour. The discrete approaches use models of some components such as the yarns and sometimes the fibres. Different approaches used for the simulation of woven reinforcement forming are investigated in the present paper. Among them, an approach based on semi discrete finite elements made of woven unit cells under biaxial tension and in-plane shear is detailed. The advantage and inconvenient of the different approaches are compared.

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

scholarly journals Mechanical Response and Damage of Woven Composite Materials Reinforced with Fique

2018 ◽  
Vol 774 ◽  
pp. 143-148 ◽  
Author(s):  
Octavio Andrés González-Estrada ◽  
Germán Díaz ◽  
Jabid E. Quiroga Mendez
Keyword(s):  
Experimental Data ◽  
Mechanical Behaviour ◽  
Structural Engineering ◽  
Mechanical Response ◽  
Experimental Tests ◽  
Woven Composites ◽  
Reinforced Composites ◽  
Woven Composite ◽  
The Matrix ◽  
Voxel Model

In this paper, we present the experimental and numerical modelling for the mechanical behaviour of woven composites reinforced with fique (furcraeaselloa) fibre, for different fique fibre woven configurations embed in an R744 epoxy matrix. The woven configurations are taken from commercial models and their mechanical properties validated by experimental data. We perform experimental tests using ASTM D3039 for the tensile response. We obtain values for Young’s modulus, ultimate strength, and deformation of unidirectional and woven reinforced composites. Scanning electron microscopy (SEM) is used for the fractographic analysis of the reinforced specimens. For the numerical model of the woven composite, we use the Texgen software to define the finite element voxel model and to estimate orthotropic mechanical parameters. Then, we determine the equivalent elastic properties of the composite, according to the materials and the fibre-matrix relations. We compare and validate the numerical results with the experimental data. We obtain stress and strain fields for the yarns and the matrix. The objective of this work is to establish a baseline of the mechanical behaviour of these natural reinforced composites to propose applications for structural engineering.

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

scholarly journals Simulation of mono-ply and multi-ply woven composite reinforcements forming

2008 ◽  
pp. 919-931
Author(s):  
Nahiene Hamila ◽  
Fabrice Hélénon ◽  
Philippe Boisse ◽  
Sylvain Chatel
Keyword(s):  
Numerical Simulation ◽  
Mechanical Behaviour ◽  
Composite Structure ◽  
Woven Composite ◽  
Textile Composite ◽  
Moulding Process ◽  
Forming Simulation ◽  
Composite Forming ◽  
Liquid Moulding ◽  
Composite Reinforcement

The numerical simulation of composite forming permits to envisage the feasibility of a process without defect but also to know the directions of the reinforcements after shaping. These directions condition strongly the mechanical behaviour of the final textile composite structure. In addition, the angles between warp and weft yarns influence the permeability of the reinforcement and thus the filling of the resin in the case of a liquid moulding process. The forming of composite reinforcement can be made on a single ply or simultaneously on several plies. In this paper the different approaches for the textile reinforcement forming simulation are described. A three node element with arbitrary directions of the yarns with regard to the element sides is presented and used for the simultaneous hemispherical forming of three layers.

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