Abstract

We study crack patterns and effective stress-strain response in unidirectional fiber-matrix composites subjected to out-of-plane and in-plane loading. The fibers are aligned in the longitudinal direction and arranged randomly, with no overlap, in the transverse plane. The fibers and the matrix are isotropic and elastic-brittle, which allows a parametrization of a wide range of composites in terms of a stiffness ratio and a strain-to-failure ratio. The analysis is carried out numerically using very fine two-dimensional spring networks permitting simulation of the crack initiation and propagation by sequentially removing bonds which exceed a local fracture criterion. Particular attention is given to the effects of scale and geometric randomness in these composites. We consider several `windows of observation' (scales) and study crack patterns, types of constitutive responses, and statistics of the corresponding scale dependent effective elastic stiffness and strength of such composites.

Original languageEnglish (US)
Pages365-371
Number of pages7
StatePublished - Dec 1 1997
EventProceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition - Dallas, TX, USA
Duration: Nov 16 1997Nov 21 1997

Other

OtherProceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition
CityDallas, TX, USA
Period11/16/9711/21/97

Fingerprint

Statistics
Composite materials
Fibers
Stiffness
Cracks
Crack initiation
Crack propagation

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Ostoja-Starzewski, M., Alzebdeh, K., & Jasiuk, I. (1997). Statistics of strength of elastic-brittle composite materials. 365-371. Paper presented at Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition, Dallas, TX, USA, .

Statistics of strength of elastic-brittle composite materials. / Ostoja-Starzewski, M.; Alzebdeh, K.; Jasiuk, I.

1997. 365-371 Paper presented at Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition, Dallas, TX, USA, .

Research output: Contribution to conferencePaper

Ostoja-Starzewski, M, Alzebdeh, K & Jasiuk, I 1997, 'Statistics of strength of elastic-brittle composite materials', Paper presented at Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition, Dallas, TX, USA, 11/16/97 - 11/21/97 pp. 365-371.
Ostoja-Starzewski M, Alzebdeh K, Jasiuk I. Statistics of strength of elastic-brittle composite materials. 1997. Paper presented at Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition, Dallas, TX, USA, .
Ostoja-Starzewski, M. ; Alzebdeh, K. ; Jasiuk, I. / Statistics of strength of elastic-brittle composite materials. Paper presented at Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition, Dallas, TX, USA, .7 p.
@conference{876ebcd5bbb94ef08b32894be734783f,
title = "Statistics of strength of elastic-brittle composite materials",
abstract = "We study crack patterns and effective stress-strain response in unidirectional fiber-matrix composites subjected to out-of-plane and in-plane loading. The fibers are aligned in the longitudinal direction and arranged randomly, with no overlap, in the transverse plane. The fibers and the matrix are isotropic and elastic-brittle, which allows a parametrization of a wide range of composites in terms of a stiffness ratio and a strain-to-failure ratio. The analysis is carried out numerically using very fine two-dimensional spring networks permitting simulation of the crack initiation and propagation by sequentially removing bonds which exceed a local fracture criterion. Particular attention is given to the effects of scale and geometric randomness in these composites. We consider several `windows of observation' (scales) and study crack patterns, types of constitutive responses, and statistics of the corresponding scale dependent effective elastic stiffness and strength of such composites.",
author = "M. Ostoja-Starzewski and K. Alzebdeh and I. Jasiuk",
year = "1997",
month = "12",
day = "1",
language = "English (US)",
pages = "365--371",
note = "Proceedings of the 1997 ASME International Mechanical Engineering Congress and Exposition ; Conference date: 16-11-1997 Through 21-11-1997",

}

TY - CONF

T1 - Statistics of strength of elastic-brittle composite materials

AU - Ostoja-Starzewski, M.

AU - Alzebdeh, K.

AU - Jasiuk, I.

PY - 1997/12/1

Y1 - 1997/12/1

N2 - We study crack patterns and effective stress-strain response in unidirectional fiber-matrix composites subjected to out-of-plane and in-plane loading. The fibers are aligned in the longitudinal direction and arranged randomly, with no overlap, in the transverse plane. The fibers and the matrix are isotropic and elastic-brittle, which allows a parametrization of a wide range of composites in terms of a stiffness ratio and a strain-to-failure ratio. The analysis is carried out numerically using very fine two-dimensional spring networks permitting simulation of the crack initiation and propagation by sequentially removing bonds which exceed a local fracture criterion. Particular attention is given to the effects of scale and geometric randomness in these composites. We consider several `windows of observation' (scales) and study crack patterns, types of constitutive responses, and statistics of the corresponding scale dependent effective elastic stiffness and strength of such composites.

AB - We study crack patterns and effective stress-strain response in unidirectional fiber-matrix composites subjected to out-of-plane and in-plane loading. The fibers are aligned in the longitudinal direction and arranged randomly, with no overlap, in the transverse plane. The fibers and the matrix are isotropic and elastic-brittle, which allows a parametrization of a wide range of composites in terms of a stiffness ratio and a strain-to-failure ratio. The analysis is carried out numerically using very fine two-dimensional spring networks permitting simulation of the crack initiation and propagation by sequentially removing bonds which exceed a local fracture criterion. Particular attention is given to the effects of scale and geometric randomness in these composites. We consider several `windows of observation' (scales) and study crack patterns, types of constitutive responses, and statistics of the corresponding scale dependent effective elastic stiffness and strength of such composites.

UR - http://www.scopus.com/inward/record.url?scp=0031382181&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0031382181&partnerID=8YFLogxK

M3 - Paper

AN - SCOPUS:0031382181

SP - 365

EP - 371

ER -