A study of process-induced stresses in advanced fiber-reinforced composite laminates is presented. An analysis of the residual thermal stresses is conducted on the basis of laminate thermoelasticity theory in conjunction with a quasi-three-dimensional finite element method. Formulation of the numerical method is briefly outlined in the paper. To illustrate the fundamental nature of the problem, numerical examples for a quasi-isotropic [0 deg/90 deg/ ± 45 deg]s graphite-epoxy composite system are presented. Complex three-dimensional stress states of significant magnitude are reported. Emphasis is placed on the interlaminar stress distributions along ply interfaces. Effects of laminate stacking sequence on the residual thermal stresses are examined in detail. Implications of the results on deformation and failure of composite laminates are discussed.
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February 1984
This article was originally published in
Journal of Engineering for Industry
Research Papers
Process-Induced Residual Thermal Stresses in Advanced Fiber-Reinforced Composite Laminates
R. J. Stango,
R. J. Stango
Department of Mechanical Engineering, Marquette University, Milwaukee, Wisc. 53233
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S. S. Wang
S. S. Wang
Department of Theoretical and Applied Mechanics, University of Illinois, Urbana, Ill. 61801
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R. J. Stango
Department of Mechanical Engineering, Marquette University, Milwaukee, Wisc. 53233
S. S. Wang
Department of Theoretical and Applied Mechanics, University of Illinois, Urbana, Ill. 61801
J. Eng. Ind. Feb 1984, 106(1): 48-54
Published Online: February 1, 1984
Article history
Received:
July 27, 1983
Online:
July 30, 2009
Citation
Stango, R. J., and Wang, S. S. (February 1, 1984). "Process-Induced Residual Thermal Stresses in Advanced Fiber-Reinforced Composite Laminates." ASME. J. Eng. Ind. February 1984; 106(1): 48–54. https://doi.org/10.1115/1.3185910
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