Load‐compression curves were taken for natural cork. The S‐shape of the curves is discussed and a theoretical fit is made for the high end of the curve, assuming an initial stiffness and an incompressible part of the cork material. A comparison is made between repeated compressions, with and without a recovery period of time.
Pressure‐volume curves were also taken and their significance discussed in connection with the load‐compression curves leading to an evaluation of Poisson's ratio.
REFERENCES
1.
2.
Synthetic rubber compound containing carbon black as used for the tread surface of tires.
3.
Jefferson Physical Laboratory, Harvard University, Cambridge, Massachusetts.
This content is only available via PDF.
© 1947 American Institute of Physics.
1947
American Institute of Physics
You do not currently have access to this content.