Measurement of the shapes of foil bulge-test samples

  title={Measurement of the shapes of foil bulge-test samples},
  author={Thomas Dixon Dudderar and F. B. Koch and E. M. Doerries},
  journal={Experimental Mechanics},
Accurate measurements of important tensile properties of thin metal foils are often quite difficult to achieve in uniaxial tests because of sample-preparation difficulties and the tensile instability called necking. Consequently, hydraulic bulge tests have been introduced as a successful means of suppressing these problems through the use of a simplified specimen geometry and biaxial rather than uniaxial tensile-stress states. Considerable effort has been made by various investigators to relate… CONTINUE READING