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Journal of Composite Materials, Vol. 28, No. 10, 902-925 (1994)
DOI: 10.1177/002199839402801002

Three-Dimensional, Nonlinear Viscoelastic Analysis of Laminated Composites

Timothy C. Kennedy

Min Wang

Department of Mechanical Engineering, Oregon State University, Corvallis, OR 97331-6001

A three-dimensional finite element analysis treating the nonlinear viscoelastic response of laminated composites is presented. The individual plies in the laminate are modeled using 20-node isoparametric solid elements. The transient creep compliance in the viscoelastic model is represented as an exponential series plus a steady-flow term, which allows for a simplification of the numerical procedure for handling hereditary effects. Time-dependent stress and strain distributions are calculated for unnotched and notched laminates subjected to tensile loading or bending.

Key Words: nonlinear viscoelasticity • finite element method • composite laminates • interlaminar stresses • three-dimensional


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 Journal of Reinforced Plastics and CompositesHome page
J. S. Harris and E. J. Barbero
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Journal of Reinforced Plastics and Composites, March 1, 1998; 17(4): 361 - 379.
[Abstract]