Abstract
Location where delamination occurs in a balanced, symmetric laminate with free edge under uniaxial mechanical loading and/or hygrothermal expansion is predicted by comparing the energy release rates due to delamination growth from the free edge on various interfaces. The change of release rate with the delamination crack length is obtained by utilizing the conventional finite element method. And a new method is proposed to evaluate a saturated value of energy release rate in the delamination crack extension. The saturated value of energy release rate is used as a measure to predict the occurrence of delamination which has yielded good agreement with observations on tension—tension and compression—compression fatigue tests conducted on carbon—epoxy composite laminates.
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References
Pipes R. B., and Pagano N. J., Interlaminar stresses in composite laminates under uniform axial extension, J. Comp. Mater., 4 (1970), 538–548.
Wang S. S., and Choi I., Boundary-layer effects in composite laminates. Part I: Free-edge stress singularities, J. appl Mech., 49 (1982), 541–548.
Herakovich C. T., Influence of layer thickness on the strength of angle-ply laminates, J. Comp. Mater., 16 (1982), 216–227.
Kim R. Y., and Soni S. R., Experimental and analytical studies on the onset of delamination in laminated composites, J. Comp. Mater., 18 (1984), 70–80.
Wang S. S., Edge delamination in angle-ply composite laminates, AIAA Journal, 22 (1984), 256–264.
Kim K. S., and Hong C. S., Delamination growth in angle-ply laminated composites, J. Comp. Mater., 20 (1986), 423–438.
Whitcomb J. D., and Raju I. S., Superposition method for analysis of free-edge stresses, J. Comp. Mater., 17 (1983), 492–507.
Pagano N. J., and Pipes R. B., The influence of stacking sequence on laminate strength, J. Comp. Mater., 5 (1971), 50–57.
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© 1987 Elsevier Applied Science Publishers Ltd
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Kondo, K., Aoki, T. (1987). An Energy Release Rate Approach for Free-edge Delamination Problem in Composite Laminates. In: Marshall, I.H. (eds) Composite Structures 4. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-3457-3_19
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DOI: https://doi.org/10.1007/978-94-009-3457-3_19
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8048-4
Online ISBN: 978-94-009-3457-3
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