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Technical Briefs

A Note on Ductile Fracture Criteria in Metal Forming

[+] Author and Article Information
Sergei Alexandrov

Institute for Problems in Mechanics, Russian Academy of Sciences, 101-1 Prospect Vernadskogo, Moscow 119526, Russia

Lihui Lang

 Beihang University, Xueyuan Road, Beijing 100191, China

J. Manuf. Sci. Eng 132(2), 024503 (Apr 21, 2010) (4 pages) doi:10.1115/1.4001248 History: Received July 03, 2009; Revised January 30, 2010; Published April 21, 2010; Online April 21, 2010

This paper deals with some general properties of a ductile fracture criterion, which generalizes two ductile fracture criteria conventionally adopted for metal forming analysis and design. The results are valid for a wide class of material models applicable to both cold and hot metal formings. It is expected that the theoretical features of the fracture criterion emphasized in the present paper can be useful for its experimental verification or for determining its parameters from the experiment.

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Figures

Grahic Jump Location
Figure 2

Fracture in extrusion under superimposed hydrostatic pressure

Grahic Jump Location
Figure 1

Schematic representation of the fracture diagram

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