Characterization of stress distribution and thermal expansion behavior for M40J/AG-80 composites experienced vacuum thermo-cycling

Gao Yu; Dong Shang-Li; He Song; Yang De-Zhuang; Li Zhi-Jun

doi:10.1177/0731684406068399

Characterization of stress distribution and thermal expansion behavior for M40J/AG-80 composites experienced vacuum thermo-cycling

Gao Yu^*
, Dong Shang-Li
, He Song
, Yang De-Zhuang
, Li Zhi-Jun

^*Corresponding author for this work

Harbin Institute of Technology
Shenyang Aerospace University
China Electronic Science and Technology Groups Inc.

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

11 Scopus citations

Abstract

The characterization of stress distribution and thermal expansion/contraction distortion is performed for a unidirectional M40J/AG-80 epoxy composite, which experienced vacuum thermo-cycling in a temperature interval of -180 to 140°C under 10^-5 Pa. The finite element analysis, using MSC.Marc 2001 software shows that vacuum thermo-cycling leads to stress concentration appearing at the interface layer, providing a stress condition to form debonding. The transverse expansion/contraction distortion changes linearly with temperature for both samples before and after thermo-cycling, while the longitudinal contraction shows a nonlinear behavior after the thermo-cycling. The variation in longitudinal contraction distortion can be attributed to the interface debonding.

Original language	English
Pages (from-to)	1647-1657
Number of pages	11
Journal	Journal of Reinforced Plastics and Composites
Volume	25
Issue number	16
DOIs	https://doi.org/10.1177/0731684406068399
State	Published - Nov 2006
Externally published	Yes

Keywords

Carbon/epoxy composites
Debonding
Finite element analysis (FEA)
Stress concentrations

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10.1177/0731684406068399

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title = "Characterization of stress distribution and thermal expansion behavior for M40J/AG-80 composites experienced vacuum thermo-cycling",

abstract = "The characterization of stress distribution and thermal expansion/contraction distortion is performed for a unidirectional M40J/AG-80 epoxy composite, which experienced vacuum thermo-cycling in a temperature interval of -180 to 140°C under 10-5 Pa. The finite element analysis, using MSC.Marc 2001 software shows that vacuum thermo-cycling leads to stress concentration appearing at the interface layer, providing a stress condition to form debonding. The transverse expansion/contraction distortion changes linearly with temperature for both samples before and after thermo-cycling, while the longitudinal contraction shows a nonlinear behavior after the thermo-cycling. The variation in longitudinal contraction distortion can be attributed to the interface debonding.",

keywords = "Carbon/epoxy composites, Debonding, Finite element analysis (FEA), Stress concentrations",

author = "Gao Yu and Dong Shang-Li and He Song and Yang De-Zhuang and Li Zhi-Jun",

year = "2006",

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doi = "10.1177/0731684406068399",

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T1 - Characterization of stress distribution and thermal expansion behavior for M40J/AG-80 composites experienced vacuum thermo-cycling

AU - Yu, Gao

AU - Shang-Li, Dong

AU - Song, He

AU - De-Zhuang, Yang

AU - Zhi-Jun, Li

PY - 2006/11

Y1 - 2006/11

N2 - The characterization of stress distribution and thermal expansion/contraction distortion is performed for a unidirectional M40J/AG-80 epoxy composite, which experienced vacuum thermo-cycling in a temperature interval of -180 to 140°C under 10-5 Pa. The finite element analysis, using MSC.Marc 2001 software shows that vacuum thermo-cycling leads to stress concentration appearing at the interface layer, providing a stress condition to form debonding. The transverse expansion/contraction distortion changes linearly with temperature for both samples before and after thermo-cycling, while the longitudinal contraction shows a nonlinear behavior after the thermo-cycling. The variation in longitudinal contraction distortion can be attributed to the interface debonding.

AB - The characterization of stress distribution and thermal expansion/contraction distortion is performed for a unidirectional M40J/AG-80 epoxy composite, which experienced vacuum thermo-cycling in a temperature interval of -180 to 140°C under 10-5 Pa. The finite element analysis, using MSC.Marc 2001 software shows that vacuum thermo-cycling leads to stress concentration appearing at the interface layer, providing a stress condition to form debonding. The transverse expansion/contraction distortion changes linearly with temperature for both samples before and after thermo-cycling, while the longitudinal contraction shows a nonlinear behavior after the thermo-cycling. The variation in longitudinal contraction distortion can be attributed to the interface debonding.

KW - Carbon/epoxy composites

KW - Debonding

KW - Finite element analysis (FEA)

KW - Stress concentrations

UR - https://www.scopus.com/pages/publications/33750467978

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DO - 10.1177/0731684406068399

M3 - 文章

AN - SCOPUS:33750467978

SN - 0731-6844

VL - 25

SP - 1647

EP - 1657

JO - Journal of Reinforced Plastics and Composites

JF - Journal of Reinforced Plastics and Composites

IS - 16

ER -

Characterization of stress distribution and thermal expansion behavior for M40J/AG-80 composites experienced vacuum thermo-cycling

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Keywords

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