Sensitivity analysis for the design of profile extrusion dies

Authors:
J. Sienz;A. Goublomme;M. Luege
Affiliations:
Swansea University, Centre for Polymer Processing Simulation and Design, School of Engineering, Swansea, Wales, UK;Fluent Benelux, Avenue Pasteur 4, 1300 Wavre, Belgium;Swansea University, Centre for Polymer Processing Simulation and Design, School of Engineering, Swansea, Wales, UK
Venue:
Computers and Structures
Year:
2010

Citing 3
Cited 0

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Finite Elements in Analysis and Design

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Abstract

This paper proposes a procedure for design sensitivity analysis using the direct differentiation method which can be easily included into a finite element code. By a reformulation of the governing equations, it is shown that the derivatives necessary to evaluate the sensitivity of a given performance measure corresponding to the current design configuration can be obtained through a post-processing step by the same finite element solver used to solve the discrete state equations. The procedure is illustrated for some examples with known analytical expression of the sensitivity and then applied to several practical problems in the design of an extrusion process.