Predicting non-linear shear deformation in 3D-fibre reinforced composites
Paper in proceedings, 2019

The strategic use of 3D-fibre reinforced composite materials has shown promising results. Along with weight efficient stiffness and strength, they have shown encouraging energy absorption capabilities. The following work proposes a general framework for modelling the mechanical response of 3D fibre-reinforced composites. The framework decomposes the stress and strain tensors into two main parts; one driven by the behaviour of the fibre reinforcement, the other driven by the non-linear matrix response under off-axis loading. The non-linear response specifically is introduced into the model using viscoelastic slip planes, in an analogous way to that of a crystal plasticity model. A prototype model is analysed in order to illustrate the capabilities of the proposed framework.

3D-woven reinforcement

Finite element modelling

Viscoelasticity

Author

Carolyn Oddy

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Magnus Ekh

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Martin Fagerström

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

ICCM22 Proceedings

22nd International Conference on Composite Materials 2019
Melbourne, Australia,

Ductile fiber reinforced composites

Swedish Energy Agency, 2016-12-06 -- 2019-12-31.

Subject Categories

Applied Mechanics

Paper, Pulp and Fiber Technology

Composite Science and Engineering

Areas of Advance

Materials Science

More information

Latest update

1/17/2020