CHARACTERIZATION OF CREEP CRACK INTERACTION FOR HIGH TEMPERATURE STRUCTURE WITH MULTIPLE EMBEDDED CRACKS

摘要：

The interaction and coalescence of multiple cracks may significantly influence the service lives of high-temperature structures. Plane strain multiple cracks problems are considered to investigate the interaction effect on the C*-integral. Using the FEA, the C*-integral are calculated for wide ranges of the relative crack distance and material constants. Finally, an empirical relation of the interaction factor is proposed for all cases considered. Furthermore, the proposed equation provides a good engineering tool for the multiple cracks interaction analysis under creep conditions.

作者: Jun Si Fu-Zhen Xuan Shan-Tung Tu

作者单位: School of Mechanical and power Engineering, East China University of Science and Technology, 130, Meilong Street, P.O.Box 402, Shanghai 200237, P.R. China

会议类型: 国际会议

会议名称: 第九届工程结构完整性国际会议(The Ninth International Conference on Engineering Structural Integrity Assessment)

会议地点: 北京

会议语种:英文

在线出版日期: 2007-10-15（万方平台首次上网日期，不代表论文的发表时间）