p-FEM heat transfer analysis of laminated composites with temperature dependent properties
- Alabama A and M Univ., Huntsville, AL (United States). Dept. of Civil Engineering
- Vanderbilt Univ., Nashville, TN (United States). Dept. of Civil and Environmental Engineering
- Wright Lab., Wright-Patterson AFB, OH (United States)
Accurate prediction of thermomechanical response of laminated composites are of particular interest to many industry, especially for aerospace applications. This paper presents the thermal analysis of such structures/components using the p-version finite element method (p-FEM). The polynomial distribution of the resulting temperature is used in the subsequent stress analysis of the quasi-coupled thermal-structural interaction problem. Use of p-FEM allows one to utilize the same mesh for both heat transfer and stress analyses but lower p-levels for temperature than displacements can be used, thus significant reduction in computational as well as modeling time results. Temperature dependence of material properties have been incorporated in this model and a modified Newton-Raphson iterative solution scheme is used for solving the nonlinear problem. Numerical results are presented for some three dimensional problems and the accuracy of the results are evaluated with reference to closed form analytical solutions.
- OSTI ID:
- 376012
- Report Number(s):
- CONF-960154-; ISBN 0-9648731-8-4; TRN: IM9642%%100
- Resource Relation:
- Conference: Energy Week `96: American Society of Mechanical Engineers and American Petroleum Institute energy week conference and exhibition, Houston, TX (United States), 21 Jan - 2 Feb 1996; Other Information: PBD: 1996; Related Information: Is Part Of Energy week `96: Conference papers. Book 5: Composite materials design and analysis; Surana, K.S. [ed.] [Univ. of Kansas, Lawrence, KS (United States)]; Kozik, T.J. [ed.] [Texas A and M Univ., College Station, TX (United States)]; PB: 498 p.
- Country of Publication:
- United States
- Language:
- English
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