Damage analysis of various cnt architectures in nanocomposites using a multiscale approach

A. Rai, Aditi Chattopadhyay, C. Lopez

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

2 Scopus citations

Abstract

A multiscale modeling framework is developed to study damage evolution and failure in carbon nanotube (CNT)-reinforced nanocomposites with different CNT configurations. The framework models the constituents of the nanocomposite explicitly, combines it in a single representative unit cell (RUC), and describes the evolution of damage in these systems under loading. The damage evolution methodology integrates information from atomistic simulations pertaining to polymer chain sliding and bond dissociation using continuum damage mechanics. Two different CNT architectures-randomly dispersed CNTs and radially grown CNTs are investigated and damage initiation sites and damage evolution trends are observed under quasi-static loading conditions. Results indicate that the presence of CNTs cause a unique stress state at the sub micro scale which can lead to accelerated damage progression and can be mitigated by architectural reconfiguration of the CNTs.

Original languageEnglish (US)
Title of host publicationProceedings of the American Society for Composites - 31st Technical Conference, ASC 2016
PublisherDEStech Publications Inc.
ISBN (Electronic)9781605953168
StatePublished - 2016
Event31st Annual Technical Conference of the American Society for Composites, ASC 2016 - Williamsburg, United States
Duration: Sep 19 2016Sep 21 2016

Other

Other31st Annual Technical Conference of the American Society for Composites, ASC 2016
CountryUnited States
CityWilliamsburg
Period9/19/169/21/16

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ASJC Scopus subject areas

  • Ceramics and Composites

Cite this

Rai, A., Chattopadhyay, A., & Lopez, C. (2016). Damage analysis of various cnt architectures in nanocomposites using a multiscale approach. In Proceedings of the American Society for Composites - 31st Technical Conference, ASC 2016 DEStech Publications Inc..