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Analytical shape and thickness sensitivities of linear shells

Lookup NU author(s): Arthit Petchsasithon, Professor Peter Gosling

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Abstract

This paper describes an efficient method to calculate sensitivity of shell structures. Sensitivity parameters of interest are shape and thickness of shell structures. An 18-node hexahedral shell is used in element formulation with inclusion of proposed methodologies to alleviate various locking phenomena. Automatic mesh generation scheme using the design element concept and isoparametric technique is employed to avoid re-meshing structures every iteration of optimization process. Numerical examples are performed and compared with exact solutions and forward finite differences to investigate the accuracy of proposed element formulation and sensitivity analysis.

Publication metadata

Author(s): Petchsasithon A, Gosling PD

Publication type: Article

Publication status: Published

Journal: Advances in Structural Engineering

Year: 2007

Volume: 10

Issue: 6

Pages: 635-653

Print publication date: 01/12/2007

ISSN (print): 1369-4332

ISSN (electronic):

Publisher: Multi-Science Publishing Co. Ltd.

URL: http://dx.doi.org/10.1260/136943307783571490

DOI: 10.1260/136943307783571490

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