文献类型：期刊文献

英文题名：Creep Behavior of Metal-to-Metal Contact Bolted Flanged Joint

作者：Chen, Y.[1]; Xu, Y.Y.[1]; Huang, L.Y.[1]; Xu, Y.H.[1]; Guan, K.S.[1]

机构：[1] Key Laboratory of Safety Science of Pressurized System, Ministry of Education, School of Mechanical and Power Engineering, East China University of Science and Technology, 130 Meilong Road, Shanghai, 200237, China

年份：2015

卷号：130

起止页码：214

外文期刊名：Procedia Engineering

收录：EI(收录号：20161502237184)

语种：英文

外文关键词：Finite element method - Metals - Flanges - Unloading - Bolts - Creep

摘要：Metal to Metal contact (MMC) bolted flange joint, which appears between gasket centering ring and flange facing, is widely used in nuclear and petrochemical industry for severe conditions. Compared to the floating type joints, the gasket outer metal ring is compressed after bolt-up and the stored energy can compensate the loss of residual gasket stress due to internal pressure, bending moment and creep, resulting in a low leakage. As it is difficult to assess the flanged joint integrity affected by creep analytically, a three-dimensional nonlinear finite element model is developed to highlight the creep behaviour of MMC flanged joint under different load cases at elevated temperature. The results show that MMC flanged joint can reduce the unloading effects due to creep and a suitable preload is recommended. ? 2015 The Authors.