Finite Element Analysis Based on Yarn Squeezing Model for the Strength Prediction of Three-dimensional Braided Composites

DOI

10.2991/wartia-18.2018.5How to use a DOI?

Keywords

3D braided composites, yarn squeezing effect, continuum damage theory, strength prediction.

Abstract

A new model considering the yarn squeezing effect in the braided structure of the three-dimensional full five directional (3DF5D) braided composites is established. Repeated unit-cell (RUC) model was used in this model to describe the microstructure of the braided composites. Spatial path and cross-section shape of the yarns in the braided structure are characterized. Damage theory is employed to simulating the damage initiation and evolution in the yarns and resin. A user defined material subroutine (UMAT) based on this theory is developed to be introduced into the finite element analysis model. The damage progression of 3DF5D braided composites RUC under uniaxial tensile loading is simulated. The strength prediction is compared with the experimental data. Good agreement is obtained between the predicted and experiment results.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Long Hu
AU  - Guoquan Tao
AU  - Yibo Wang
PY  - 2018/09
DA  - 2018/09
TI  - Finite Element Analysis Based on Yarn Squeezing Model for the Strength Prediction of Three-dimensional Braided Composites
BT  - Proceedings of the 4th Workshop on Advanced Research and Technology in Industry (WARTIA 2018)
PB  - Atlantis Press
SP  - 21
EP  - 25
SN  - 2352-5401
UR  - https://doi.org/10.2991/wartia-18.2018.5
DO  - 10.2991/wartia-18.2018.5
ID  - Hu2018/09
ER  -