Improvements to dry fabric modeling for ballistic mitigation systems

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

3 Scopus citations

Abstract

This paper focuses on improvements to modeling dry fabric-based systems widely used in propulsion engine containment systems. Simulations of fabrics under impact using finite elements provide valuable insight into the mechanics of fabric behavior and its energy absorption. In our model, the fabric is treated as an equivalent continuum model composed of thin shell elements. The fabric of choice is Kevlar 49 whose behavior is characterized using uniaxial quasi-static and high strain rate tension tests, picture frame tests and friction tests. test results are used determine the material properties and to build the material and finite element models. The constitutive model is programmed as a user-defined material model in LS-DYNA. Simulations of a suite of ballistic impact tests are models using both deterministic and probabilistic (based on the Weibull distribution of strength) approaches and the results are compared against experimental results.

Original languageEnglish (US)
Title of host publicationEarth and Space 2012 - Proceedings of the 13th ASCE Aerospace Division Conference and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration
PublisherAmerican Society of Civil Engineers (ASCE)
Pages1275-1284
Number of pages10
ISBN (Print)9780784412190
DOIs
StatePublished - 2012
Event13th Biennial ASCE Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments, Earth and Space 2012 and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration - Pasadena, CA, United States
Duration: Apr 15 2012Apr 18 2012

Publication series

NameEarth and Space 2012 - Proceedings of the 13th ASCE Aerospace Division Conference and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration

Other

Other13th Biennial ASCE Aerospace Division International Conference on Engineering, Science, Construction, and Operations in Challenging Environments, Earth and Space 2012 and the 5th NASA/ASCE Workshop on Granular Materials in Space Exploration
CountryUnited States
CityPasadena, CA
Period4/15/124/18/12

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Environmental Engineering
  • Building and Construction

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