21 April 2014
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Reliability of notched composite laminates using a combined experimental investigation and stochastic finite element analysis methodology

Author(s): R. Ganesan & S.M. Venugopal

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...

Pages: 10
Size: 538 kb
Paper DOI: 10.2495/CMEM030611

 

 

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This paper can be found in the following book

Computational Methods in Experimental Measurements XI

Computational Methods in Experimental Measurements XI

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