Prediction of forming limit in single point incremental forming with the ductile fracture criterion

Y. Huang*, Jian Cao, Y. J. Wang, M. Li

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Scopus citations

Abstract

Many experiments have been conducted to investigate the forming limit in single point incremental forming (SPIF). The forming limit curve (FLC) generated from these experiments follows a linear line with a negative slope in the positive minor strain side of the forming limit diagram (FLD). It is also found that, in general, for the same material subjected to the SPIF process, the failure strain level greatly exceeds the traditional FLC based on theories of the plastic instability [Iseki and Kumon, 1994]. Currently, no theoretical work or no criterion was proposed to predict this FLC in the SPIF. In this paper, the criterion for the ductile fracture [Oyane, 1980] is introduced to try to predict the forming limit of the material in the SPIF. Based on the calculated stress and strain from the finite element simulation and the ductile fracture criterion, the fracture initiation site and the forming limit are predicted. The predicted results are compared with that from the SPIF experiment to verify the feasibility of the proposed method.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers
Pages929-934
Number of pages6
DOIs
StatePublished - Dec 31 2007
Event2007 ASME International Conference on Manufacturing Science and Engineering - Atlanta, GA, United States
Duration: Jan 15 2007Oct 18 2007

Other

Other2007 ASME International Conference on Manufacturing Science and Engineering
CountryUnited States
CityAtlanta, GA
Period1/15/0710/18/07

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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