孙志刚
Professor
Education Level:南京航空航天大学
Degree:Doctoral Degree in Engineering
School/Department:College of Energy and Power Engineering
Discipline:Aerospace Propulsion Theory and Engineering. Power Machinery and Engineering
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Affiliation of Author(s):能源与动力学院
Journal:APPLIED COMPOSITE MATERIALS
Key Words:2D plain woven C/SiC composite Preloading and oxidation Equal proportional reduction method Residual elastic modulus and strength
Abstract:In this paper, a numerical model which incorporates the oxidation damage model and the finite element model of 2D plain woven composites is presented for simulation of the oxidation behaviors of 2D plain woven C/SiC composite under preloading oxidation atmosphere. The equal proportional reduction method is firstly proposed to calculate the residual moduli and strength of unidirectional C/SiC composite. The multi-scale method is developed to simulate the residual elastic moduli and strength of 2D plain woven C/SiC composite. The multi-scale method is able to accurately predict the residual elastic modulus and strength of the composite. Besides, the simulated residual elastic moduli and strength of 2D plain woven C/SiC composites under preloading oxidation atmosphere show good agreements with experimental results. Furthermore, the preload, oxidation time, temperature and fiber volume fractions of the composite are investigated to show their influences upon the residual elastic modulus and strength of 2D plain woven C/SiC composites.
ISSN No.:0929-189X
Translation or Not:no
Date of Publication:2017-12-01
Co-author:Chen, Xihui,Sun, Jianfen,syd
Correspondence Author:szg