Reading: Numerical Investigations of Small Punch Tests for Determining Tensile Properties

Download

A- A+
Alt. Display

Conference Paper

Numerical Investigations of Small Punch Tests for Determining Tensile Properties

Author:

M. Kamaya

Institute of Nuclear Safety System, Inc.
X close

Abstract

Small punch tests were conducted for carbon steel specimens prepared with and without cold working. A digital image correlation technique was applied to measure displacement. Finite element analyses using the true stress-strain curves including post-necking strain could reproduce the load-displacement (LD) curve. Use of the nominal stress-strain curve obtained by the conventional tensile test was not enough to simulate the maximum load. It was found that the maximum load did not depend on the ultimate strength. Therefore, the ultimate strength prediction using the maximum load in the LD curve may not be valid for the general case. On the other hand, the yield strength correlated well with the deflection point in the LD curve. A new equation was proposed to estimate the yield strength that takes into consideration the influence of the specimen thickness.
How to Cite: Kamaya, M., 2018. Numerical Investigations of Small Punch Tests for Determining Tensile Properties. Ubiquity Proceedings, 1(S1), p.27. DOI: http://doi.org/10.5334/uproc.27
2
Views
2
Downloads
Published on 10 Sep 2018.
Peer Reviewed

Downloads

  • PDF (EN)

    comments powered by Disqus