On strength design using free material subjected to multiple load cases

On strength design using free material subjected to multiple load cases

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Article ID: iaor2013276
Volume: 47
Issue: 1
Start Page Number: 7
End Page Number: 17
Publication Date: Jan 2013
Journal: Structural and Multidisciplinary Optimization
Authors: ,
Keywords: engineering, optimization, design
Abstract:

Multiple load cases and the consideration of strength is a reality that most structural designs are exposed to. Improved possibility to produce specific materials, say by fiber lay‐up, put focus on research on free material optimization. A formulation for such design problems together with a practical recursive design procedure is presented and illustrated with examples. The presented finite element analysis involve many elements as well as many load cases. Separating the local amount of material from a description with unit trace for the local anisotropy, gives the free materials formulation a more physical interpretation of the material constraint.

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