SYMPOSIA PAPER Published: 01 January 1978
STP34862S

Influence of Two-Dimensional Hygrotheramal Gradients on Interlaminar Stresses Near Free Edges

Source

Interlaminar stresses are determined for mechanical loading, uniform hygrothermal loading, and gradient moisture loading through implementation of a finite-element computer code. Nonuniform two-dimensional hygroscopic gradients are obtained from a finite-difference solution of the diffusion equation. It is shown that hygroscopic-induced stresses can be larger than those resulting from mechanical and thermal loading, and that the distribution of the interlaminar normal stress may be changed significantly in the presence of a two-dimensional moisture gradient in the boundary layer of a composite laminate.

Author Information

Faryley, GL
Virginia Polytechnic Institute & State University, Blacksburg, Va.
Herakovich, CT
Virginia Polytechnic Institute & State University, Blacksburg, Va.
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Details
Developed by Committee: D30
Pages: 143–159
DOI: 10.1520/STP34862S
ISBN-EB: 978-0-8031-4727-0
ISBN-13: 978-0-8031-0274-3