WIT Press


Moving Boundary Of Fibers In FRC

Price

Free (open access)

Paper DOI

10.2495/MB030311

Volume

36

Pages

10

Published

2003

Size

398 kb

Author(s)

P. Procházka

Abstract

The optimal shape design of structures is currently of great importance to a wide range of engineers and researchers. The particular problems associated with this lead to very complicated nonlinear systems and new solutions of optimization are investigated. It can be easily shown that some types of problems are more easily solved using the boundary element method than finite elements. The formulation is more complicated in BEM, but the consecutive numerical process is much easier. In composite-based materials the bearing capacity plays a very important role, as does the durability. In order to optimize this situation, the moving of the fiber boundary obeys certain additional conditions leading to keeping a volume frczction of the fibers (or matrix) equal to constant. In other words, mcurimum fiber stiffness is desired and an additional constraint is required: a constant

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