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Paper V.1

A Method for Optimally Designing Laminated Plates Subject to Fatigue Loads using a Cumulative Damage Constraint and Finite Element Analysis

M. Walker

Center for Advanced Materials, Design and Prototyping Research, Technikon Natal, Durban, South Africa

doi:10.4203/ccp.59.5.1

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M. Walker, "A Method for Optimally Designing Laminated Plates Subject to Fatigue Loads using a Cumulative Damage Constraint and Finite Element Analysis", in B.H.V. Topping, B. Kumar, (Editors), "Developments in Analysis and Design using Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 103-106, 1999. doi:10.4203/ccp.59.5.1

Abstract

A procedure to optimally design laminated plates for a specific cyclic life using a cumulative damage rule constraint is described. The objective is minimum weight, and the design variables are the fiber orientation, and the plate thickness. The plates are subjected to cyclic bending loads, and the finite element method, in conjunction with the Golden Section routine, is used to determine the design variables optimally. The FE formulation is based on Mindlin theory for thin laminated plates and shells, and the formulation includes bending-twisting coupling. In order to demonstrate the procedure, several plates with differing events, aspect ratios and boundary conditions are optimised and compared.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 59 DEVELOPMENTS IN ANALYSIS AND DESIGN USING FINITE ELEMENT METHODS Edited by: B.H.V. Topping and B. Kumar Paper V.1 A Method for Optimally Designing Laminated Plates Subject to Fatigue Loads using a Cumulative Damage Constraint and Finite Element Analysis M. Walker Center for Advanced Materials, Design and Prototyping Research, Technikon Natal, Durban, South Africa doi:10.4203/ccp.59.5.1 purchase the full-text of this paper Full Bibliographic Reference for this paper M. Walker, "A Method for Optimally Designing Laminated Plates Subject to Fatigue Loads using a Cumulative Damage Constraint and Finite Element Analysis", in B.H.V. Topping, B. Kumar, (Editors), "Developments in Analysis and Design using Finite Element Methods", Civil-Comp Press, Edinburgh, UK, pp 103-106, 1999. doi:10.4203/ccp.59.5.1 Abstract A procedure to optimally design laminated plates for a specific cyclic life using a cumulative damage rule constraint is described. The objective is minimum weight, and the design variables are the fiber orientation, and the plate thickness. The plates are subjected to cyclic bending loads, and the finite element method, in conjunction with the Golden Section routine, is used to determine the design variables optimally. The FE formulation is based on Mindlin theory for thin laminated plates and shells, and the formulation includes bending-twisting coupling. In order to demonstrate the procedure, several plates with differing events, aspect ratios and boundary conditions are optimised and compared. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £74 +P&P)
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