期刊
INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES
卷 210, 期 -, 页码 162-169出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijsolstr.2020.11.012
关键词
Multi-scale modeling; Homogenization; Coefficient of thermal expansion; 3D woven composite
类别
资金
- Natural Sciences and Engineering Research Council of Canada (NSERC) [CRDPJ514761-17]
- Safran S.A.
This paper introduces a simple and computationally efficient multi-scale procedure to predict the macroscopic temperature dependent coefficient of thermal expansion (CTE) of linearly thermoelastic materials from isothermal mechanical simulations. The approach, demonstrated on a 3D woven composite material, was successfully validated with full thermal simulations.
This paper presents a simple and computationally efficient multi-scale procedure to predict the macroscopic temperature dependent coefficient of thermal expansion (CTE) of any linearly thermoelastic material from isothermal mechanical simulations only. The approach relies on Levin's demonstration that, in analytical homogenization, the effective coefficient of thermal expansion is related to the local coefficient of thermal expansion and the stress concentration tensor. For demonstration purposes, this procedure was applied to a 3D woven composite material. The proposed approach was successfully validated with full thermal simulations. C() 2020 Elsevier Ltd. All rights reserved.
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