Short fiber composites: Computational homogenization vs orientation averaging
Paper in proceedings, 2019

Short Fibre Reinforced Composites (SFRCs) typically have a high strength to weight ratio. Also, manufacturing processes for these materials are low-cost, and high production rates can be achieved using these materials. Thus, SFRCs are being increasingly used in variety of applications such as the car industry. For SFRCs, different micro-structural parameters (in addition to the constitutive behaviour of the matrix and reinforcements), such as fibre volume fraction, fibre orientation distribution, fibre length distribution, fibre aspect ratios and fibre/matrix interface strength play important roles in the macroscopic mechanical behaviour. Hence, to have an accurate and reliable modelling approach, using multi-scale models is a natural choice. In this study, computational homogenization is used with realistic numerical Representative Volume Elements (RVEs). More importantly and due to the limitations of the first approach, a multi-scale model is developed for SFRCs based on an orientation averaging method.

Computational homogenization

Short fibre

Orientation averaging

Composites

Author

Mohsen Mirkhalaf

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Eva Eggels

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Abhijith Anantharanga

Chalmers University of Technology

Fredrik Larsson

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

Martin Fagerström

Chalmers, Industrial and Materials Science, Material and Computational Mechanics

International Conference on Composite Materials (ICCM22)
Melbourne, Australia,

Subject Categories

Applied Mechanics

Composite Science and Engineering

Areas of Advance

Life Science Engineering (2010-2018)

More information

Latest update

6/25/2019