Atomistically informed method of cells based multiscale approach for analysis of CFRP composites

Ashwin Rai, Nithya Subramanian, Aditi Chattopadhyay

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

2 Scopus citations

Abstract

In this paper a multiscale-modeling framework is presented wherein fundamental damage information at the atomic level is coupled with a sectional micromechanics model for the nonlinear and damage analysis of carbon fiber reinforced polymer (CFRP) composites. Damage information in the polymer matrix originating from the atomic scale, as investigated using molecular dynamics (MD) simulations, is transferred to the continuum length scale using a continuum damage mechanics approach with a physical damage evolution equation. Such a framework is shown to be computationally efficient for the linear and damage analysis of CFRP composites and reasonably accurate when compared to experimental data and verified models in literature. Furthermore, material uncertainty, such as curing degree variation in polymers, can be computationally calculated leading to a computational stochastic analysis of the CFRP composites. Thus, such a framework can be used to investigate the damage mechanics of ply level CFRP components at the nano, micro and macro length scales.

Original languageEnglish (US)
Title of host publicationAdvances in Aerospace Technology
PublisherAmerican Society of Mechanical Engineers (ASME)
ISBN (Electronic)9780791850510
DOIs
StatePublished - Jan 1 2016
EventASME 2016 International Mechanical Engineering Congress and Exposition, IMECE 2016 - Phoenix, United States
Duration: Nov 11 2016Nov 17 2016

Publication series

NameASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
Volume1

Other

OtherASME 2016 International Mechanical Engineering Congress and Exposition, IMECE 2016
CountryUnited States
CityPhoenix
Period11/11/1611/17/16

ASJC Scopus subject areas

  • Mechanical Engineering

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  • Cite this

    Rai, A., Subramanian, N., & Chattopadhyay, A. (2016). Atomistically informed method of cells based multiscale approach for analysis of CFRP composites. In Advances in Aerospace Technology (ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE); Vol. 1). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/IMECE201665447