ISSN: 1945-7553
CODEN: JTEVAB
Published Online: 24 May 2011
Page Count: 8

Mechanical Behavior of Aluminum Alloys During Small Punch Test

Sanders, Matthew
Dept. of Mechanical Engineering, Texas A&M Univ., College Station, TX

Di Bella, Frank
Concepts NREC, White River Junction, VA

Liang, Hong
Dept. of Mechanical Engineering, Texas A&M Univ., College Station, TX

(Received 15 August 2010; accepted 17 April 2011)

Abstract

Small Punch Tests (SPTs) were conducted in order to determine material properties and understand their mechanical behavior. Equations were derived to calculate the yield strength, ultimate tensile strength, modulus of elasticity, and hardness of five aluminum alloys. A greater understanding of the mechanisms of the SPT and how specimens behave during testing is also discussed. It was found that the 2024-T3 and 7075-T651 aluminum alloys were shown to have the highest maximum small punch force before failure. The relationship between the SPT parameters and the yield strength, tensile strength, elastic modulus, and hardness is shown to be linear. The empirical equation developed here is suitable for aluminum alloys.

Keywords:
small punch test, aluminum alloys, material characterization, tensile properties

Paper ID: JTE103323
DOI: 10.1520/JTE103323
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