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Interlaminar stresses in tapered laminates
Author(s) -
Hoa S. V.,
Daoust J.,
Du B. L.,
VuKhanh T.
Publication year - 1988
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.750090506
Subject(s) - materials science , epoxy , composite material , finite element method , delamination (geology) , graphite , composite laminates , stress (linguistics) , glass fiber , structural engineering , composite number , paleontology , linguistics , philosophy , subduction , biology , engineering , tectonics
Tapered laminates of unidirectional layers of glass/epoxy and graphite/epoxy are investigated. These laminates have a thickness variation along their length. This was accomplished by having layers dropped off near the midlength of the laminate. Stress and strain variations were obtained using three‐dimensional finite element models. Calculated values using the finite element method compare well with experimental results for the point of first delamination. This agreement allows the determination of a suitable finite element mesh for subsequent models of other tapered laminates with fiber orientations other than unidirectional.