A novel technique for uniaxial compression lest of sheet metal has ben developed which allows the directly measure stress-strain relationship and eliminates the experimental problems of large strain gradients and friction inherent in some usual testing methods. The compression work-hardening curve have been determinated for aluminium, aluminium alloy, stool and titanium alloy and compared to those obtained at the same strain rate in uniaxial tension The validity of proposed method is examined at different strain levels and is concluded that the method is quite reliable and can be used in the study of forming behavior of sheet metals.
