Inverse methods in design of industrial forging processes

• Type: Article in International Scientific Journal
• Date: 2002

Authors

Luisa Costa Sousa (Author) FEUP; Catarina Castro (Author) FEUP; Carlos da Conceição António (Author) FEUP; Abel Dias dos Santos (Author) FEUP

Journal

Title: Journal of Materials Processing Technology

Vol. 128 No. 1

Pages: 266-273

ISSN: 0924-0136

Publisher: Elsevier

Indexing

ISI Web of Knowledge - 21 Citations

Scopus - 29 Citations

Scientific classification

FOS: Engineering and technology > Civil engineering

Other information

Authenticus ID: P-000-MQC

DOI: 10.1016/s0924-0136(02)00464-8

Abstract (EN): An approach to optimal shape design in forging is presented. The design problem is formulated as an inverse problem incorporating a finite element 3D analysis model and an optimisation technique conducted on the basis of design sensitivities. The mechanical analysis provides information to predict deformation, stresses and strains necessary to the shape optimisation problem. The objective is to minimise a function describing die underfill and excessive material waste. Analytical sensitivities of the objective function are required and the calculation of discrete derivatives based on the differentiation of the discrete problem equations is considered. Due to the time-dependent deformation process the direct differentiation method has been implemented. The capability of the proposed inverse approach to deal with optimal forging of industrial parts is demonstrated.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8