SEDL / STP / STP129-EB / STP41570S

An Evaluation of Several Static and Dynamic Methods for Determining Elastic Moduli

Richards, John T.
Development Engineer, The Beryllium Corp., Reading, Pa.

Pages: 30    Published: Jan 1952

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Abstract

As a means of evaluating modulus test methods, specimens were submitted to several laboratories and the results compared. Static procedures included tension, compression, flexure, and torsion. Dynamic moduli were obtained directly by speed of sound determinations and indirectly from longitudinal, flexural, shear, and torsional vibration. Poisson's ratio was measured directly and also calculated from modulus data. An explanation of the differences on the basis of test methods and conditions is attempted.