Analysis of Strain Non-uniformity Index (SNI) for DifferentGeometries of Drawn Sheet Metal Parts

This paper explores the effect of the part geometry on the variation of the Strain NonUniformity Index (SNI) at failure in shapes drawn from a single material. Forming of different shapes, namely, a square cup, an equibiaxially stretched sample was performed experimentally as well as simulated using...

Full description

Saved in:
Bibliographic Details
Published inJournal of physics. Conference series Vol. 734; no. 3; pp. 32098 - 32101
Main Authors Jadhav, Sandip, Tekale, Ratneshwar, Date, Prashant P.
Format Journal Article
LanguageEnglish
Published Bristol IOP Publishing 01.08.2016
Subjects
Failure
Formability
Forming Limit Diagram (FLD)
Metal sheets
Nonuniformity
Physics
sheet metal forming
Strain analysis
Strain Non-Uniformity Index (SNI)
Online AccessGet full text

Cover

More Information
Summary:This paper explores the effect of the part geometry on the variation of the Strain NonUniformity Index (SNI) at failure in shapes drawn from a single material. Forming of different shapes, namely, a square cup, an equibiaxially stretched sample was performed experimentally as well as simulated using AUTOFORM 5.2 Plus software. Failure predictions were made using the SNI based methodology and the FLD, and compared with experimental outcomes. Forming of the cross draw (FTF benchmark), was simulated and corresponding critical SNI was established based on the failure predicted with reference to the FLD. The SNI values so obtained are discussed in light of different component shapes and draw depths during forming of various geometries.
ISSN:1742-6588
1742-6596
DOI:10.1088/1742-6596/734/3/032098