ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 3

Determination of Stress Relaxation by Damping Measurements

Weissmann, GF
presidentMember of ASTM, Damping Measurement Systems, Inc., Florham Park, NJ

Abstract

The conventional determination of the stress relaxation properties of metals and their alloys is tedious and time-consuming. The method of predicting stress relaxation in metal strips subjected to uniform bending is based on the work per cycle required to maintain a constant strain energy level for the specimen. The change of the work per cycle with time or the number of cycles has been considered. The data obtained by damping measurements agree very well with a limited number of static stress relaxation measurements. The proposed method of predicting stress relaxation by damping measurements is simple and fast and should be particularly useful for data recorded at or close to room temperature.

Keywords:
stress relaxation, damping, energy dissipation, work per cycle, metals testing, metals properties

Paper ID: JTE11589J
DOI: 10.1520/JTE11589J
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