Dynamic fatigue of two-dimensional carbon/carbon composites

Junjie Ren; Kezhi Li; Shouyang Zhang; Xiyuan Yao

doi:10.1016/j.msea.2013.01.073

Dynamic fatigue of two-dimensional carbon/carbon composites

Junjie Ren, Kezhi Li, Shouyang Zhang, Xiyuan Yao

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

The dynamic fatigue of a chemical vapor infiltration 2D-C/C composite was investigated in three-point flexure using different stress rates from 0.07 to 70MPas^-1. Flexure strength of the specimens increased in proportion to the increase of stress rate. From the ln σ-ln σ diagram, stress corrosion factor n was obtained. The n value of 58 in the present work indicated that slow crack growth controlled the fracture process. The fracture under different stress rates shows characteristics of the slow crack growth, which agree with the result of dynamic fatigue.

Original language	English
Pages (from-to)	123-126
Number of pages	4
Journal	Materials Science and Engineering: A
Volume	570
DOIs	https://doi.org/10.1016/j.msea.2013.01.073
State	Published - 15 May 2013

Keywords

Carbon/carbon composites
Dynamic fatigue
Fracture
Mechanical characterization
Stress corrosion factor

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10.1016/j.msea.2013.01.073

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title = "Dynamic fatigue of two-dimensional carbon/carbon composites",

abstract = "The dynamic fatigue of a chemical vapor infiltration 2D-C/C composite was investigated in three-point flexure using different stress rates from 0.07 to 70MPas-1. Flexure strength of the specimens increased in proportion to the increase of stress rate. From the ln σ-ln σ diagram, stress corrosion factor n was obtained. The n value of 58 in the present work indicated that slow crack growth controlled the fracture process. The fracture under different stress rates shows characteristics of the slow crack growth, which agree with the result of dynamic fatigue.",

keywords = "Carbon/carbon composites, Dynamic fatigue, Fracture, Mechanical characterization, Stress corrosion factor",

author = "Junjie Ren and Kezhi Li and Shouyang Zhang and Xiyuan Yao",

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T1 - Dynamic fatigue of two-dimensional carbon/carbon composites

AU - Ren, Junjie

AU - Li, Kezhi

AU - Zhang, Shouyang

AU - Yao, Xiyuan

PY - 2013/5/15

Y1 - 2013/5/15

N2 - The dynamic fatigue of a chemical vapor infiltration 2D-C/C composite was investigated in three-point flexure using different stress rates from 0.07 to 70MPas-1. Flexure strength of the specimens increased in proportion to the increase of stress rate. From the ln σ-ln σ diagram, stress corrosion factor n was obtained. The n value of 58 in the present work indicated that slow crack growth controlled the fracture process. The fracture under different stress rates shows characteristics of the slow crack growth, which agree with the result of dynamic fatigue.

AB - The dynamic fatigue of a chemical vapor infiltration 2D-C/C composite was investigated in three-point flexure using different stress rates from 0.07 to 70MPas-1. Flexure strength of the specimens increased in proportion to the increase of stress rate. From the ln σ-ln σ diagram, stress corrosion factor n was obtained. The n value of 58 in the present work indicated that slow crack growth controlled the fracture process. The fracture under different stress rates shows characteristics of the slow crack growth, which agree with the result of dynamic fatigue.

KW - Carbon/carbon composites

KW - Dynamic fatigue

KW - Fracture

KW - Mechanical characterization

KW - Stress corrosion factor

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DO - 10.1016/j.msea.2013.01.073

M3 - 文章

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SN - 0921-5093

VL - 570

SP - 123

EP - 126

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

ER -

Dynamic fatigue of two-dimensional carbon/carbon composites

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Keywords

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