Viscoelastic Microbuckling of Fiber Composites

[+] Author and Article Information
W. S. Slaughter, N. A. Fleck

Engineering Department, Cambridge University, Trumpington Street, Cambridge, CB2 1PZ, England

J. Appl. Mech 60(4), 802-806 (Dec 01, 1993) (5 pages) doi:10.1115/1.2900986 History: Received April 03, 1992; Revised December 03, 1992; Online March 31, 2008


A theoretical study is given of viscoelastic microbuckling of fiber composites. The analysis is formulated in terms of general linear viscoelastic behavior within the kink band. Material outside the kink band is assumed to behave elastically. Two specific forms of linear viscoelastic behavior are considered: a standard linear viscoelastic model and a logarithmically creeping model. Results are provided as deformation versus time histories and failure life versus applied stress. Failure is due to either the attainment of a critical failure strain in the kink band or to the intervention of a different failure mechanism such as plastic microbuckling.

Copyright © 1993 by The American Society of Mechanical Engineers
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