A Study on the Safety Evaluation of Design for Piping Materials (I)

배관용재료의 설계시 안전성 평가에 관한 연구(I)

Several piping material test methods have been developed as a result of advances in elastic-plastic fracture mechanics. It's known that, crack propagation of the materials strongly governed by the $J_{Ic}$ value. But the value is still difficult to be obtained because of it's complicate and troble-some determination process. In this paper, to prove the validity of the developed test procedure a series of tests were peformed at various temperatures and for different material directions. directions.