WIT Press

Optimization Of Structures With Correlated Eigenstrains

Price

Free (open access)

Paper DOI

10.2495/CP960181

Volume

10

Pages

10

Published

1996

Size

690 kb

Author(s)

P. Prochazka & J. Naprstek

Abstract

The paper deals with behavior of scalar functional serving for optimiza- tion of eigenstrains with stochastically perturbed and correlated values in a laminated cylindrical structure from composite materials. The eigenstrains in layers are required for several reasons, as is improvement of bearing ca- pacity of the laminated cylinder, creep, time delay in construction of large structures, etc. For expressing the relation between stresses and eigen- strains in each layer the transformation field analysis. [3], serves. Recently. in [4] and [5], optimum eigenstrains or optimum eigenstresses were solved under assumption that these quantities had stochastically perturbed and non-correlated values. In this paper the optimum eigenstrains are searched, for which the cost functio

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