A generalised approach to the calibration of orthotropic materials for thermoelastic stress analysis

被引:56
作者
Emery, T. R. [1 ]
Dulieu-Barton, J. M. [1 ]
Earl, J. S. [1 ]
Cunningham, P. R. [2 ]
机构
[1] Univ Southampton, Sch Engn Sci, Southampton SO17 1BJ, Hants, England
[2] Loughborough Univ Technol, Dept Aeronaut & Automot Engn, Loughborough LE11 3TU, Leics, England
关键词
thermoelastic stress analysis; polymer matrix composites (PMCs); thermomechanical properties; laminate theory;
D O I
10.1016/j.compscitech.2007.09.002
中图分类号
TB33 [复合材料];
学科分类号
摘要
A review of thermoelastic theory associated with orthotropic solids is provided, the purpose of which is to develop a calibration procedure for thermoelastic stress analysis (TSA) that can be applied to laminated orthotropic composite materials. The procedure is based oil the laminate strains rather than the surface ply stresses and enables a calibration approach that accounts simultaneously for the laminate mechanical response and the surface thermoelastic response. This calibration routine enables quantitative values of strain to be derived from thermoelastic data obtained from laminated composite structures. The calibration procedure is based oil the use of simple tensile specimens. A variety of laminate stacking sequences are studied using E-glass epoxy pre-impregnated materials. Detailed material properties are obtained and the calibration procedure validated experimentally and theoretically. (c) 2007 Elsevier Ltd. All rights reserved.
引用
收藏
页码:743 / 752
页数:10
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