ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 5

An Apparatus for Biaxial Strength Testing of Standard Tensile Specimens

Mazachek, KD
University of Kansas, Lawrence, KS

Faddis, TN
University of Kansas, Lawrence, KS

(Received 20 February 1991; accepted 2 July 1991)

Abstract

A novel, low cost testing apparatus has been designed for the application of biaxial stress on standard tensile spectmens. The apparatus independently applies compressive loading perpendicular to a tensile load. The compressive load is transferred through a compression pad, applying hydrostatic pressure to the test section.

The experimental results of tests conducted on 6061-T6 aluminum have been analyzed and compared using the von Mises failure criterion. The results indicate that using this test apparatus with a polytetrafluoroethylene (PTFE) compression pad produces biaxial failures consistent with the failure envelope defined by the von Mises failure criterion.

Keywords:
biaxial testing, failure criterion, aluminum, multiaxial stress

Paper ID: JTE11909J
DOI: 10.1520/JTE11909J
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