Verification method of universal material testing machine

- Mar 05, 2019-

The verification method of universal material testing machine, according to the force value of the test machine, the standard tensile specimen of the corresponding force value is clamped on the test machine, and the standard tensile specimen is stretched by the test machine according to the speed specified by the GB/T228-2002 standard, and when the standard tensile specimen is stretched, it is fitted with an extension meter or affixed with a strain gauge. , so that the tensile testing machine continues to stretch the standard tensile specimen, the extension meter or strain gauge will show the elongation of the standard tensile specimen, this method uses Hooker's law to compare the powerless value of the elongation of the standard tensile specimen with that of the test machine to determine the accuracy of the test machine. This method greatly simplifies the operation process of the verification, and brings great convenience and standardization to the daily verification of the original tensile state of the test machine.