Formability Prediction of Two-Layer Sheets Based on Ductile Fracture Criteria

Two-layer sheets which consist of dissimilar metallic components are widely used in various industries. In this paper, formability of Al3105–St14 two-layer sheet is evaluated numerically and experimentally. Freudenthal, Cockroft & Latham, Oh and Brozzo ductile fracture criteria are implemented t...

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Bibliographic Details
Published in:Transactions of the Indian Institute of Metals 2017-09, Vol.70 (7), p.1841-1847
Main Authors: Azodi, Hamed Deilami, Safari, Mehdi, Darabi, Roya
Format: Article
Language:English
Subjects:
Chemistry and Materials Science
Corrosion and Coatings
Criteria
Dissimilar metals
Ductile fracture
Formability
Forming limits
Heat treating
Materials Science
Metal sheets
Metallic Materials
Technical Paper
Tribology
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Summary:Two-layer sheets which consist of dissimilar metallic components are widely used in various industries. In this paper, formability of Al3105–St14 two-layer sheet is evaluated numerically and experimentally. Freudenthal, Cockroft & Latham, Oh and Brozzo ductile fracture criteria are implemented to predict forming limits in the numerical approach. Numerical FLDs and FLSDs are compared with experimental observations for Al3105–St14 two-layer sheet, and a good agreement is seen. The results show that the prediction of forming limits based on Oh and Brozzo ductile fracture criteria are more accurate than the predictions based on Freudenthal and Cockroft criteria.
ISSN:0972-2815
0975-1645
DOI:10.1007/s12666-016-0986-5