Dynamic modeling for rate-dependent interface failure of composite materials

Ryan Karkkainen, Chian Fong Yen, Ben Boesl

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

1 Citation (Scopus)

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 publicationInternational SAMPE Symposium and Exhibition (Proceedings)
StatePublished - 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

Other

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

Fingerprint

Failure modes
Textiles
Composite materials
Micromechanics
Structural design
Strain rate
Crack propagation
Fibers

ASJC Scopus subject areas

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

Cite this

Karkkainen, R., Yen, C. F., & Boesl, B. (2010). Dynamic modeling for rate-dependent interface failure of composite materials. In International SAMPE Symposium and Exhibition (Proceedings)

Dynamic modeling for rate-dependent interface failure of composite materials. / Karkkainen, Ryan; Yen, Chian Fong; Boesl, Ben.

International SAMPE Symposium and Exhibition (Proceedings). 2010.

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

Karkkainen, R, Yen, CF & Boesl, B 2010, Dynamic modeling for rate-dependent interface failure of composite materials. in International SAMPE Symposium and Exhibition (Proceedings). SAMPE 2010 Conference and Exhibition "New Materials and Processes for a New Economy", Seattle, WA, United States, 5/17/10.
Karkkainen R, Yen CF, Boesl B. Dynamic modeling for rate-dependent interface failure of composite materials. In International SAMPE Symposium and Exhibition (Proceedings). 2010
Karkkainen, Ryan ; Yen, Chian Fong ; Boesl, Ben. / Dynamic modeling for rate-dependent interface failure of composite materials. International SAMPE Symposium and Exhibition (Proceedings). 2010.
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