The Mechanical Characteristics of Rubber

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Abstract
The author presents some of the characteristics of rubber in which engineers may be interested from a design standpoint, without going into detail on every phase of the subject which might affect design. He points out that there is a vast amount of data still to be collected, especially to establish accuracy on some points that seem to be in doubt. He suggests that to obtain data accurately, it will be necessary to conduct tests in rooms where humidity and temperature are closely controlled. The author presents data showing that moduli of elasticity and the creep of shear and torsion springs are decidedly affected by temperature. Presented graphically are curves showing load-deflection, shear, and torsion characteristics of various rubber specimens including compression pads, rubber shear sandwiches, and torsion springs.

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