Strain rate effects on failure of a toughened matrix composite

J. D. Schaefer*, B. T. Werner, Isaac M Daniel

*Corresponding author for this work

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

4 Scopus citations

Abstract

The objective of this study was to characterize the quasi-static and dynamic behavior of a toughened matrix composite (IM7/8552) and apply the Northwestern (NU) failure theory to describe its strain-rate dependent failure under multi-axial states of stress. Unidirectional and off-axis experiments were conducted at two strain rates, quasi-static (10-4 s-1) and intermediate (∼1 s-1) using a servo-hydraulic testing machine. Stress-strain curves were obtained and the nonlinear response and failure were measured and evaluated based on classical failure criteria and the NU theory. Predicted failure envelopes were compared with experimental results. The NU theory was shown to be in excellent agreement with experimental data.

Original languageEnglish (US)
Title of host publicationExperimental Mechanics of Composite, Hybrid, and Multifunctional Materials - Proceedings of the 2013 Annual Conference on Experimental and Applied Mechanics
Pages117-123
Number of pages7
Volume6
DOIs
StatePublished - Jan 1 2014
Event2013 Annual Conference on Experimental and Applied Mechanics - Lombard, IL, United States
Duration: Jun 3 2013Jun 5 2013

Other

Other2013 Annual Conference on Experimental and Applied Mechanics
Country/TerritoryUnited States
CityLombard, IL
Period6/3/136/5/13

ASJC Scopus subject areas

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

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