ISSN: 1546-962X
CODEN: JAIOAD
Published Online: 29 April 2010
Page Count: 11

Finite Element Modeling of a Rockman Portable Dynamic Hardness Tester

Zareh, H.
Associate Professor, Mechanical and Materials Engineering, Portland State Univ., Portland, OR

Martinez, J.
Graduate Research Assistant, Mechanical and Materials Engineering, Portland State Univ., Portland, OR

Carter, M.
The Boeing Company, Portland, OR

Koenig, J.
The Boeing Company, Portland, OR

(Received 23 September 2009; accepted 6 April 2010)

Abstract

A Rockman hardness tester is a type of portable dynamic hardness tester that is similar to a standard Rockwell hardness tester, except the full load is applied dynamically over a very short duration. Finite element models were developed for a Rockman hardness tester and a standard B scale Rockwell hardness tester. The Rockwell hardness tester model served as a benchmark problem to validate assumptions and modeling techniques used for the Rockman hardness tester model. Before developing the model of the Rockman hardness tester, the dynamic loading characteristics were determined using a piezoelectric force transducer. After solving both models comparisons were drawn between the two hardness testers.

Keywords:
finite element, Rockwell, Rockman, portable dynamic hardness test

Paper ID: JAI102757
DOI: 10.1520/JAI102757
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