Reliability Of Notched Composite Laminates Using A Combined
Experimental Investigation And Stochastic Finite Element Analysis
Methodology
Author(s)
R. Ganesan & S.M. Venugopal
Abstract
Reliability of notched composite laminates
using a combined experimental investigation
and stochastic finite element analysis
methodology
R. Ganesan & S.M. Venugopal
Concordia Centre for Composites (CONCOM), Department of
Mechanical and Industrial Engineering, Concordia University, Canada
Abstract
The design of notched composite laminates is based on the averaged stress over
certain characteristic distance from the notch edge and the strength of the
corresponding un-notched laminate. In practice, the notch geometry is not perfect
due to machining conditions and the mechanical properties of composite
laminates. The imperfections in notch geometry have a stochastic distribution.
On the other hand, tests on laminate coupons show that the un-notched strength
also has a stochastic distribution. Accordingly, the characteristic length used in
design has a stochastic distribution. Therefore, in order to ichieve a design with
a required reliability and safety, (i) the stress analysis of the notched lam
Keywords
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