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)

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.

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

Fingerprint

Tensile strength
Carbon
Composite materials
Weibull distribution
Glass

Keywords

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

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]
Wisnom, Michael R. ; Cantera, M. Asun ; Czél, Gergely ; Jalalvand, Meisam. / New approaches to quantifying tensile strength variability and size effects in unidirectional composites. 32nd Technical Conference of the American Society for Composites 2017. editor / R. Byron Pipes ; Wenbin Yu ; Johnathan Goodsell. Vol. 4 2017. pp. 2902-2909
@inproceedings{bffc3665ee6c49b895a896a9c2bf64f0,
title = "New approaches to quantifying tensile strength variability and size effects in unidirectional composites",
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.",
keywords = "unidirectional composites, tensile strength variability, carbon/epoxy composites, Weibull distribution",
author = "Wisnom, {Michael R.} and Cantera, {M. Asun} and Gergely Cz{\'e}l and Meisam Jalalvand",
year = "2017",
month = "10",
day = "25",
language = "English",
isbn = "9781510853065",
volume = "4",
pages = "2902--2909",
editor = "Pipes, {R. Byron} and Wenbin Yu and Johnathan Goodsell",
booktitle = "32nd Technical Conference of the American Society for Composites 2017",

}

Wisnom, MR, Cantera, MA, Czél, G & Jalalvand, M 2017, New approaches to quantifying tensile strength variability and size effects in unidirectional composites. in RB Pipes, W Yu & J Goodsell (eds), 32nd Technical Conference of the American Society for Composites 2017. vol. 4, 375, pp. 2902-2909, 32nd Technical Conference of the American Society for Composites 2017, West Lafayette, United States, 23/10/17.

New approaches to quantifying tensile strength variability and size effects in unidirectional composites. / Wisnom, Michael R.; Cantera, M. Asun; Czél, Gergely; Jalalvand, Meisam.

32nd Technical Conference of the American Society for Composites 2017. ed. / R. Byron Pipes; Wenbin Yu; Johnathan Goodsell. Vol. 4 2017. p. 2902-2909 375.

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

TY - GEN

T1 - New approaches to quantifying tensile strength variability and size effects in unidirectional composites

AU - Wisnom, Michael R.

AU - Cantera, M. Asun

AU - Czél, Gergely

AU - Jalalvand, Meisam

PY - 2017/10/25

Y1 - 2017/10/25

N2 - 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.

AB - 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.

KW - unidirectional composites

KW - tensile strength variability

KW - carbon/epoxy composites

KW - Weibull distribution

M3 - Conference contribution book

SN - 9781510853065

VL - 4

SP - 2902

EP - 2909

BT - 32nd Technical Conference of the American Society for Composites 2017

A2 - Pipes, R. Byron

A2 - Yu, Wenbin

A2 - Goodsell, Johnathan

ER -

Wisnom MR, Cantera MA, Czél G, Jalalvand M. New approaches to quantifying tensile strength variability and size effects in unidirectional composites. In Pipes RB, Yu W, Goodsell J, editors, 32nd Technical Conference of the American Society for Composites 2017. Vol. 4. 2017. p. 2902-2909. 375