The Development of Expansion Plug Wedge Test for Clad Tubing Structure Mechanical Property Evaluation

Wang, Jy-An John¹  Jiang, Hao¹ 

[1] Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

关键词: clad property;    expansion plug wedge test;    hoop stress;    tubing structure;   

DOI  :  10.2172/1238021
RP-ID  :  ORNL/TM-2015/723
PID  :  OSTI ID: 1238021
Others  :  Other: DN3003010
Others  :  MDGA507
Others  :  TRN: US1600530

美国|英语

来源: SciTech Connect

【 摘 要 】

To determine the tensile properties of irradiated fuel cladding in a hot cell, a simple test was developed at the Oak Ridge National Laboratory (ORNL) and is described fully in US Patent Application 20060070455, ???Expanded plug method for developing circumferential mechanical properties of tubular materials.??? This method is designed for testing fuel rod cladding ductility in a hot cell using an expandable plug to stretch a small ring of irradiated cladding material. The specimen strain is determined using the measured diametrical expansion of the ring. This method removes many complexities associated with specimen preparation and testing. The advantages are the simplicity of measuring the test component assembly in the hot cell and the direct measurement of the specimen???s strain. It was also found that cladding strength could be determined from the test results.