文献类型：期刊文献

英文题名：Analysis of Elasto-plastic Contact with Coating Surface of Weathering Steel of Fabricated Supports and Hangers

作者：Mai, Libo[1]; Wang, Hehui[1]

机构：[1] School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai, China

年份：2019

卷号：490

期号：5

外文期刊名：IOP Conference Series: Materials Science and Engineering

收录：EI(收录号：20191906901793)

语种：英文

外文关键词：Fabrication - Plastic coatings - Aluminum alloys - Cobalt alloys - Chromium alloys - Elastoplasticity - Shear stress - Weathering - Compressive stress - Finite element method

摘要：Three-dimensional elasto-plastic behaviors of NiCoCrAlY coating under the indentation contact of rigid indenter are studied by using the finite element method, and the distribution of stress at the interface is analyzed. The influence of the coating of the weathering steel on the substrate material properties is studied when it is squeezed by the elastic pipe, and then the loading condition of the weathering steel is checked. The results show that the NiCoCrAlY coating can effectively improve the contact bearing capacity of the surface of the weathering steel, and there comes obvious residual deformation and stress in the coating entering the plastic stage after unloading. In addition, the compressive stress and the shear stress at the interface are mainly concentrated in the pressure center, and they will also increase with the increase of load. Eventually, the rationality of the design of the standard atlas of fabricated supports and hangers is verified. ? Published under licence by IOP Publishing Ltd.