Multiscale modeling of Carbon Fiber Reinforced Polymer (CFRP) for integrated computational materials engineering process

Jiaying Gao, Biao Liang, Weizhao Zhang, Zeliang Liu, Puikei Cheng, Ramin Bostanabad, Jian Cao, Wei Chen, Wing K Liu, Xuming Su, Danielle Zeng, John Zhao

Research output: Chapter in Book/Report/Conference proceedingConference contribution

2 Scopus citations

Abstract

In this work, a multiscale modeling framework for CFRP is introduced to study hierarchical structure of CFRP. Four distinct scales are defined: Nanoscale, microscale, mesoscale, and macroscale. Information at lower scales can be passed to higher scale, which is beneficial for studying effect of constituents on macroscale part’s mechanical property. This bottom-up modeling approach enables better understanding of CFRP from finest details. Current study focuses on microscale and mesoscale. Representative volume element is used at microscale and mesoscale to model material’s properties. At microscale, unidirection CFRP (UD) RVE is used to study properties of UD. The UD RVE can be modeled with different volumetric fraction to encounter non-uniform fiber distribution in CFRP part. Such consideration is important in modeling uncertainties at microscale level. Currently, we identified volumetric fraction as the only uncertainty parameters in UD RVE. To measure effective material properties of UD RVE, periodic boundary conditions (PBC) are applied to UD RVE to ensure convergence of obtained properties. Properties of UD is directly used at mesoscale woven RVE modeling, where each yarn is assumed to have same properties as UD. Within woven RVE, there can be many potential uncertainties parameters to consider for a physical modeling of CFRP. Currently, we will consider fiber misalignment within yarn and angle between wrap and weft yarns. PBC is applied to woven RVE to calculate its effective material properties. The effect of uncertainties are investigated quantitatively by Gaussian process. Preliminary results of UD and Woven study are analyzed for efficacy of the RVE modeling. This work is considered as the foundation for future multiscale modeling framework development for ICME project.

Original languageEnglish (US)
Title of host publication32nd Technical Conference of the American Society for Composites 2017
EditorsJohnathan Goodsell, R. Byron Pipes, Wenbin Yu
PublisherDEStech Publications Inc.
Pages302-315
Number of pages14
Volume1
ISBN (Electronic)9781510853065
StatePublished - Jan 1 2017
Event32nd Technical Conference of the American Society for Composites 2017 - West Lafayette, United States
Duration: Oct 23 2017Oct 25 2017

Other

Other32nd Technical Conference of the American Society for Composites 2017
Country/TerritoryUnited States
CityWest Lafayette
Period10/23/1710/25/17

ASJC Scopus subject areas

  • Ceramics and Composites

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