A multiscale two-way thermomechanically coupled micromechanics analysis of the impact response of thermo-elastic-viscoplastic composites

Brett A. Bednarcyk, Jacob Aboudi, Steven M. Arnold, Evan J. Pineda

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

A dynamic multiscale micromechanics model that accounts for two-way thermomechanical coupling in composites is presented. It predicts not only the standard deformation that results from a temperature change, but also the temperature change that results from mechanical deformation. In addition, viscoplastic material behavior is included at the scale of the fiber/matrix constituents in a local High-Fidelity Generalized Method of Cells analysis, which is conducted at each material point of a global analysis on a composite specimen. The global analysis of the composite considers time-dependent thermomechanical boundary conditions capable of simulating impact loading while solving the coupled transient thermal problem and the dynamic mechanical problem. Effective thermoelastic and physical properties, as well as homogenized inelastic strains are provided to the global model from the local scale. The multiscale model was employed to examine the impact response of a carbon/epoxy composite with emphasis on the temperature changes and inelastic strains induced by the impact loading.

Original languageEnglish
Title of host publication33rd Technical Conference of the American Society for Composites 2018
PublisherDEStech Publications Inc.
Pages1275-1291
Number of pages17
ISBN (Electronic)9781510872073
StatePublished - 2018
Event33rd Technical Conference of the American Society for Composites 2018 - Seattle, United States
Duration: 24 Sep 201827 Sep 2018

Publication series

Name33rd Technical Conference of the American Society for Composites 2018
Volume2

Conference

Conference33rd Technical Conference of the American Society for Composites 2018
Country/TerritoryUnited States
CitySeattle
Period24/09/1827/09/18

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