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Interlaminar fracture of random short-fiber SMC compositeIn the experimental phase of the present study of the interlaminar fracture behavior of a randomly oriented short fiber sheet molding compound (SMC) composite, the double cantilever beam fracture test is used to evaluate the mode I interlaminar fracture toughness of different composite thicknesses. In the analytical phase of this work, a geometrically nonlinear analysis is introduced in order to account for large deflections and nonlinear load deflection curves in the evaluation of interlaminar fracture toughness. For the SMC-R50 material studied, interlaminar toughness is an order of magnitude higher than that of unreinforced neat resin, due to unusual damage mechanisms ahead of the crack tip, together with significant fiber bridging across crack surfaces. Composite thickness effects on interlaminar fracture are noted to be appreciable, and a detailed discussion is given on the influence of SMC microstructure.
Document ID
19850042473
Document Type
Reprint (Version printed in journal)
Authors
Wang, S. S. (Illinois Univ. Urbana, IL, United States)
Suemasu, H. (Illinois Univ. Urbana, IL, United States)
Zahlan, N. M. (Illinois, University Urbana, IL, United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1984
Publication Information
Publication: Journal of Composite Materials
Volume: 18
ISSN: 0021-9983
Subject Category
COMPOSITE MATERIALS
Distribution Limits
Public
Copyright
Other