A Statistical Constitutive Model for the Strength of Brittle Fiber at Different Strain Rates

Abstract:

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A statistical constitutive model, which takes account the effect of strain rate, was presented to describe the stress-strain relationship of brittle fiber bundles. To verify its reliability, tensile tests on two kinds of brittle fibers: glass fiber and SiC fiber, were carried out at different strain rates, and the stress-strain curves were obtained. It was found that the modulus E, the strength and the fracture strain of these fiber bundles all increase with increasing strain rate. The simulated stress-strain curves, derived from the constitutive model, fit the tested results well, which indicates that the model is valid and reliable.

Info:

Periodical:

Advanced Materials Research (Volumes 152-153)

Edited by:

Zhengyi Jiang, Jingtao Han and Xianghua Liu

Pages:

1213-1216

DOI:

10.4028/www.scientific.net/AMR.152-153.1213

Citation:

W. Huang and Z. W. Huang, "A Statistical Constitutive Model for the Strength of Brittle Fiber at Different Strain Rates", Advanced Materials Research, Vols. 152-153, pp. 1213-1216, 2011

Online since:

October 2010

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Price:

$35.00

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