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A computational methodology for shape optimization of structures in frictionless contact

โœ Scribed by Daniel Hilding; Bo Torstenfelt; Anders Klarbring

Publisher
Elsevier Science
Year
2001
Tongue
English
Weight
499 KB
Volume
190
Category
Article
ISSN
0045-7825

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โœฆ Synopsis

This paper presents a computational methodology for shape optimization of structures in frictionless contact, which provides a basis for developing user-friendly and ecient shape optimization software. For evaluation it has been implemented as a subsystem of a general ยฎnite element software. The overall design and main principles of operation of this software are outlined. The parts connected to shape optimization are described in more detail. The key building blocks are: analytic sensitivity analysis, an adaptive ยฎnite element method, an accurate contact solver, and a sequential convex programing optimization algorithm. Results for three model application examples are presented, in which the contact pressure and the eective stress are optimized.

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