Transitioning a unidirectional composite computer model from mesoscale to continuum

Sidney Chocron, Ramón Zaera, James Walker, Alon Brill, Roman Kositski, Doron Havazelet, Ulrich Heisserer, Harm Van Der Werff

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

2 Scopus citations

Abstract

Ballistic impact on composites has been a challenging problem as seen in the abundant literature about the subject. Continuum models usually cannot properly predict deflection history on the back of the target while at the same time giving reasonable ballistic limits. According to the authors the main reason is that, while continuum models are very good at reproducing the elastic characteristics of the laminate, the models do not capture the behaviour of the "failed" material. A "failed" composite can still be very effective in stopping a projectile, because it can behave very similar to a dry woven fabric. The failure aspect is much easier to capture realistically with a mesoscale model. These models explicitly contain yarns and matrix allowing the matrix to fail while the yarns stay intact and continue to offer resistance to the projectile. This paper summarizes the work performed by the authors on the computationally expensive mesoscale models and, using them as benchmark computations, describes the first steps towards obtaining more computationally effective models that still keep the right physics of the impact.

Original languageEnglish
Title of host publicationDYMAT 2015 - 11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading
EditorsEzio Cadoni
PublisherEDP Sciences
ISBN (Electronic)9782759818174
DOIs
StatePublished - 7 Sep 2015
Externally publishedYes
Event11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading, DYMAT 2015 - Lugano, Switzerland
Duration: 7 Sep 201511 Sep 2015

Publication series

NameEPJ Web of Conferences
Volume94
ISSN (Print)2101-6275
ISSN (Electronic)2100-014X

Conference

Conference11th International Conference on the Mechanical and Physical Behaviour of Materials Under Dynamic Loading, DYMAT 2015
Country/TerritorySwitzerland
CityLugano
Period7/09/1511/09/15

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