Determination of flow curve using bulge test and calibration of damage for Ito-Goya models

• Type: Article in International Conference Proceedings Book
• Date: 2013

Authors

Bruno Martins (Author) Other; Abel D Santos (Author) FEUP; Pedro Teixeira (Author) FEUP; Ito, K (Author) Other; Mori, N (Author) Other

Conference proceedings International

Title: CURRENT STATE-OF-THE-ART ON MATERIAL FORMING: NUMERICAL AND EXPERIMENTAL APPROACHES AT DIFFERENT LENGTH-SCALES, PTS 1-3

Pages: 182-189

16th ESAFORM Conference on Material Forming (ESAFORM 2013)

Aveiro, PORTUGAL, APR 22-24, 2013

Indexing

ISI Web of Knowledge - 1 Citation

Scopus - 1 Citation

Scientific classification

FOS: Engineering and technology > Materials engineering

Other information

Authenticus ID: P-006-FP5

DOI: 10.4028/www.scientific.net/kem.554-557.182

Abstract (EN): The standard uniaxial tensile test is the widely accepted method to obtain relevant properties of mechanical characterization of sheet metal materials. However the range of strain obtained from tensile test is limited. The bulge test is an alternative to obtain ranges of deformation, higher than tensile test, thus permitting a better characterization for material behaviour. This paper presents a sensitivity analysis for some influencing variables used in bulge measurements, thus giving some guidelines for the evaluation of the stress-strain curve from experimental results using a developed experimental mechanical system. Additionally, using bulge test up to fracture shall give material information regarding damage, which in turn may be used to evaluate and calibrate damage models. A methodology is presented to be used for evaluation and calibration of Ito-Goya damage model of damage prediction.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 8