ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 6

Comparison of Bending and Tension Tests in Creep of Sheet Metal

Duncan, JL
Professor of mechanical engineering, McMaster University, Hamilton, Ontario

Ragab, AR
Graduate student in mechanical engineering, McMaster University, Hamilton, Ontario

Abstract

A technique is presented for obtaining creep data for thin sheets using a test in which the whole sheet is arranged as a cantilever loaded by its own weight. A theory is given for deriving creep parameters from measured deflection rates in two tests. A stress-strain rate curve is derived from a number of tests using the skeletal point method. Tensile and bending tests were performed on superplastic eutectoid Zn-Al sheet at room temperature which demonstrated the applicability of the bending test to obtain creep properties of superplastic alloys. Erratum to this paper appears in 2(1).

Keywords:
creep, superplasticity, sheet metal, creep bending

Paper ID: JTE10049J
DOI: 10.1520/JTE10049J
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