A simple, easily constructed apparatus is described for the measurement of Young's Modulus of metal rods or bars under direct longitudinal stress, with total strain as low as 2 X 10-6 for a specimen of 10 cm. length. The extension of the specimen is magnified by a system consisting of two mechanical and two optical levers.
Proceedings of the Iowa Academy of Science
©1937 Iowa Academy of Science, Inc.
Van Allen, James A.
"Apparatus for Measuring Young's Modulus at Small Strains,"
Proceedings of the Iowa Academy of Science, 44(1), 152-152.
Available at: https://scholarworks.uni.edu/pias/vol44/iss1/57