Rate Control Methods and Rate Selection for Tensile Test

In order to discuss the executive ability of GB/T 228.1-2010 in laboratory, tensile test was done with two kinds of tensile rate control methods in the standard using the existing equipments in a laboratory. The results show that Z100 tensile test machine could be applied in strain rate control method (method A) with the aid of a extensometer, but the demand for equipment control and personnel operation were rather high, and the actual strain rate exceeded the error limits and deviated method A. All the other tensile test machines in the laboratory could not be applied in method A. Stable and reliable test results could be obtained with stress rate control method (method B) in the standard and it could meet the control requirements of the strain rate.