Dynamic modeling for rate-dependent interface failure of composite materials

Ryan L. Karkkainen, Chian Fong Yen, Ben Boesl

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

1 Scopus citations

Abstract

Textile composites exhibit multiple potential failure modes in structural or impact applications. Accurate modeling of these modes enables effective material design and structural design through multi-scale modeling and design from the micromechanical to application level. In dynamic impact events, interface failure between the fiber tow and interstitial matrix represents a common failure mode not explicitly captured in many models. This phenomenon is seen to be driven by rate-dependent interface fracture properties with both rate and fracture mode sensitivity. This paper focuses on development of a model for interface failure to be employed within a textile micromechanics model in later works. Simulation has enabled insight into the dynamic in-situ stress state and crack growth under impact for property determination and test specimen evaluation. A rate-dependent cohesive failure criterion has been successfully employed and agrees closely with published experimental results at multiple strain rates. Both rate and mode-mixity effects on failure have been successfully included.

Original languageEnglish (US)
Title of host publicationSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy"
StatePublished - Dec 2 2010
Externally publishedYes
EventSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy" - Seattle, WA, United States
Duration: May 17 2010May 20 2010

Publication series

NameInternational SAMPE Symposium and Exhibition (Proceedings)
ISSN (Print)0891-0138

Other

OtherSAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy"
CountryUnited States
CitySeattle, WA
Period5/17/105/20/10

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

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  • Cite this

    Karkkainen, R. L., Yen, C. F., & Boesl, B. (2010). Dynamic modeling for rate-dependent interface failure of composite materials. In SAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy" (International SAMPE Symposium and Exhibition (Proceedings)).