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Civil-Comp Proceedings
ISSN 1759-3433
CCP: 72
IDENTIFICATION, CONTROL AND OPTIMISATION OF ENGINEERING STRUCTURES
Edited by: G. De Roeck and B.H.V. Topping
Paper V.4

A Self-Designing Structural Method for Two-Dimensional Shape Optimal Design with Stress Constraints

K.H. Lim+ and J.W. Bull#

+Department of Mechanical Engineering, Hankuk Aviation University, Korea
#Engineering Design Centre, University of Newcastle upon Tyne, Newcastle, United Kingdom

Full Bibliographic Reference for this paper
K.H. Lim, J.W. Bull, "A Self-Designing Structural Method for Two-Dimensional Shape Optimal Design with Stress Constraints", in G. De Roeck, B.H.V. Topping, (Editors), "Identification, Control and Optimisation of Engineering Structures", Civil-Comp Press, Edinburgh, UK, pp 153-160, 2000. doi:10.4203/ccp.72.5.4
Abstract
A simple Self-Designing Structure's [SDS] based procedure to add and remove material simultaneously along a boundary is developed to optimize the shape of two-dimensional elastic problems and to minimize the maximum von Mises stress. The SDS results for the two dimensional infinite plate with a hole, are very close to the theoretical results of an elliptical boundary. For the fillet problem the SDS program reduces the stress concentration to a half. The proposed shape optimisation method, when compared with existing derivative based shape optimisation methods has many features such as simplicity, applicability, flexibility, computational efficiency and a better control of the stresses on the design boundary.

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