Review on Measured Stress and Flow Stress at Room-Temperature Compression Test

상온압축시험에서 측정응력과 유동응력과의 관계고찰

Compression test has been used to measure material flow stress due to limited capability of tensile test at the fast strain rate. Since the frictional stress unavoidable during compression test should be properly eliminated from the measured stress, calibration of the measured stress by using friction factor has been made for the flow stress measurement. Also, calibrated stresses by interrupted and continuous compression tests have been compared with the true stress measured by tensile test at $0.2\%$ carbon steel.