文献类型：会议论文

英文题名：Time dependent behavior of hollow cylinder with functionally graded coating

作者：Chen, Jianjun; Tu, Shan-Tung; Xuan, Fu-Zhen; Wang, Zhengdong

机构：[1]E China Univ Sci & Technol, Shanghai 200237, Peoples R China

会议论文集：Joint Meeting of the Annual Conference of Fracture Mechanics/Triennial Conference of High Temperature Strength of Material and Structure (FM 2006/HTSMS)

会议日期：NOV 17-20, 2006

会议地点：Nanjing, PEOPLES R CHINA

语种：英文

外文关键词：functionally graded coating; cylinder; creep; asymptotic solution

摘要：The creep behavior of a hollow cylinder covered with functionally graded coating is studied under the internal pressures. By the aid of Taylor's expansion series an asymptotic time-dependent solution is derived for the cylindrical graded coating system. The asymptotic solutions agree well with the finite element analysis. The numerical results show that during the creep stage the cylindrical stress is redistributed inside the functionally graded coating which makes the outer surface of the coating suffers a higher stress level since it is composed of "hard-creep" properties.