Determination of Values by the Double Clip-on Gage Compliance Method
SourceAs one of the candidates for the single-specimen method to determine the JIc value, the double clip-on gage compliance method (DCGC) was introduced. This technique is based on the concept of the rotational factor of the compact tension specimen. According to the DCGC method, the JIc value can be determined by using only two clipon gages on a compact tension specimen under monotonic loading. To examine the usefulness of the DCGC method, JIc values of several kinds of steel were determined by the DCGC method and were compared with JIc values obtained by the multiple specimen method described in ASTM and Japan Society of Mechanical Engineers (JSME) standards. The relationship between JIc values by the DCGC method and by the multiple-specimen method was discussed, and the industrial utility of the DCGC method was verified.