Fibrous composites strength prediction only upon independently measured constituent properties

Xiaojun Zhu; Xiaolong Gu; Yang Hong; Yonggang Yang; Juwei Chen

doi:10.1117/12.2667379

6 March 2023 Fibrous composites strength prediction only upon independently measured constituent properties

Xiaojun Zhu, Xiaolong Gu, Yang Hong, Yonggang Yang, Juwei Chen

Proceedings Volume 12553, Fourth International Conference on Optoelectronic Science and Materials (ICOSM 2022); 1255302 (2023) https://doi.org/10.1117/12.2667379
Event: 2022 4th International Conference on Optoelectronic Science and Materials (ICOSM2022), 2022, Henfei, China

Abstract

This study proposes a new micromechanical model, which can study the fiber composites strength by using independently fiber and matrix properties. In the new proposed composite model, which is based on two-dimensional generalized model of cells, is used to study the composites representative volume element. At the same time, a stress concentration factor is considered, in order to use the composites fiber and matrix properties. A fiber strain test which is under many different load conditions is done, which can prove the validity of the new model. Something interesting between the theoretical study and experimental data have been obtained. Compared to the proposed model without SCF, the proposed SCF model simulated results are much better. If the thermal stress is considered, the prediction results will be much better. Furthermore, the study results indicate that the matrix plasticity behavior generally make a big difference on the composites strength prediction.

Citation Download Citation

Xiaojun Zhu, Xiaolong Gu, Yang Hong, Yonggang Yang, and Juwei Chen "Fibrous composites strength prediction only upon independently measured constituent properties", Proc. SPIE 12553, Fourth International Conference on Optoelectronic Science and Materials (ICOSM 2022), 1255302 (6 March 2023); https://doi.org/10.1117/12.2667379

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