New approaches to quantifying tensile strength variability and size effects in unidirectional composites

Michael R. Wisnom, M. Asun Cantera, Gergely Czél, Meisam Jalalvand

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

1 Citation (Scopus)
12 Downloads (Pure)

Abstract

Two methods were used to investigate the variability of tensile failure strain of unidirectional high strength carbon/epoxy. Scaled tests on glass/carbon hybrid specimens showed a significant size effect and reduction of failure strain with stressed volume consistent with a Weibull modulus of 25. Ply fragmentation tests were also carried out, producing multiple carbon fractures in a single specimen. Strains from these tests also fitted a Weibull distribution, and gave a similar Weibull modulus to the scaled tests.

Original languageEnglish
Title of host publication32nd Technical Conference of the American Society for Composites 2017
EditorsR. Byron Pipes, Wenbin Yu, Johnathan Goodsell
Pages2902-2909
Number of pages8
Volume4
Publication statusPublished - 25 Oct 2017
Event32nd Technical Conference of the American Society for Composites 2017 - West Lafayette, United States
Duration: 23 Oct 201725 Oct 2017

Conference

Conference32nd Technical Conference of the American Society for Composites 2017
CountryUnited States
CityWest Lafayette
Period23/10/1725/10/17

Keywords

  • unidirectional composites
  • tensile strength variability
  • carbon/epoxy composites
  • Weibull distribution

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  • Cite this

    Wisnom, M. R., Cantera, M. A., Czél, G., & Jalalvand, M. (2017). New approaches to quantifying tensile strength variability and size effects in unidirectional composites. In R. B. Pipes, W. Yu, & J. Goodsell (Eds.), 32nd Technical Conference of the American Society for Composites 2017 (Vol. 4, pp. 2902-2909). [375]