Compression behavior of ultra high-modulus carbon/epoxy composites

M. C. Glath, K. L. Koudela, E. C. Strauch

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

1 Scopus citations

Abstract

Among compression test methods for composites, ASTM D3410, SACMA SRM 1R-94, and ASTM D6641 are currently used to determine the compression modulus, E 11c, for ultra-high modulus (UHM, > 350 GPa) composites. In this study, the compressive modulus of a UHM carbon/epoxy composite specimen is experimentally determined via SACMA SRM 1R-94 and ASTM D6641; ASTM D3410 is excluded from the study due to test fixture assembly complexities. A finite element model is developed for each experimental method to calculate the compression modulus of the UHM carbon/epoxy composite. The largest strains are found to be at the specimen ends for SACMA SRM 1R-94 and in the adhesive at the gage end for ASTM D6641. A statistical sensitivity analysis (ANOVA) is used to vary parameters suspected to influence the compression modulus of the UHM carbon/epoxy composite specimen for ASTM D6641. It is found that the compression modulus of the UHM carbon/epoxy composite specimen is most sensitive to the clamping pressure due to bolt torque in the ASTM D6641 test fixture and the UHM specimen thickness.

Original languageEnglish (US)
Title of host publication28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
Pages796-814
Number of pages19
StatePublished - Dec 1 2013
Event28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013 - State College, PA, United States
Duration: Sep 9 2013Sep 11 2013

Publication series

Name28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
Volume1

Other

Other28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013
CountryUnited States
CityState College, PA
Period9/9/139/11/13

All Science Journal Classification (ASJC) codes

  • Ceramics and Composites

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  • Cite this

    Glath, M. C., Koudela, K. L., & Strauch, E. C. (2013). Compression behavior of ultra high-modulus carbon/epoxy composites. In 28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013 (pp. 796-814). (28th Annual Technical Conference of the American Society for Composites 2013, ASC 2013; Vol. 1).