Abstract
The effect of temperatures between ambient and 150°C on the critical strain at the onset of wrinkling in aluminium sheet deformed in a strip drawing test and on the rate of growth of wrinkles has been investigated. It was confirmed that the delay in the onset of wrinkling and in the growth of wrinkles is a result of the decrease in the compressive component of the surface stresses as the temperature increases. The correlation between the decrease in elastic modulus and yield strength and the increase in the work hardening exponent and coefficients of normal plastic anisotropy, similar to that observed at room temperature, can be attributed to the effect of temperature on these properties.MST/1245
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