A formulation of thickness optimization for plane stress


Makrodimopoulos, A., Bhaskar, A. and Keane, A.J. (2009) A formulation of thickness optimization for plane stress. In, 17th UK Conference on Computational Mechanics (ACME-UK), Nottingham, UK, 06 - 08 Apr 2009. 4pp, 319-322.

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Description/Abstract

Thickness optimization can be considered as a case of sizing optimization for plane structures. It can
also be used as an intermediate step for topology problems, i.e. we can eliminate the parts where the
thickness tends to be zero. This paper is concerned with the case of plane stress structures coupled with
the finite element method. The aim is to present a formulation of this problem as a case of second-order
cone programming which is a standard form of mathematical programming. The advantage is that,
on the one hand, all that the engineer has to do is to compute elemental data, and on the other, large
discretized structures can be optimized accurately due to the efficiency of the proposed formulation.
Different types of elements regarding the thickness field are considered.

Item Type: Conference or Workshop Item (Paper)
Keywords: Thickness optimization; Second-order cone programming; Plane stress
Subjects: Q Science > Q Science (General)
Divisions: University Structure - Pre August 2011 > School of Engineering Sciences > Computational Engineering and Design
ePrint ID: 69907
Date Deposited: 10 Dec 2009
Last Modified: 14 Apr 2014 10:17
Research Funder: EPSRC
Projects:
The role of topology and shape in structural design
Funded by: EPSRC (EP/E004547/1)
Led by: A Bhaskar
22 January 2007 to 21 July 2010
URI: http://eprints.soton.ac.uk/id/eprint/69907

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