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| 基于结构弱点分析的高温构件延寿修复技术 | |
| 引用本文： | 涂善东,王正东,陈建钧,巩建鸣. 基于结构弱点分析的高温构件延寿修复技术[J]. 压力容器, 2004, 21(9): 1-8 |
| 作者姓名： | 涂善东 王正东 陈建钧 巩建鸣 |
| 作者单位： | 1. 华东理工大学,机械工程学院,上海,200237;南京工业大学,机械与动力工程学院,江苏,南京,210009 2. 华东理工大学,机械工程学院,上海,200237 3. 南京工业大学,机械与动力工程学院,江苏,南京,210009 |
| 基金项目： | 国家自然科学基金 (No 10 172 0 46、No 5 0 2 2 5 5 17) |
| 摘 要： | 在工程结构中 ,几何突变、冶金不连续以及非均布载荷的作用都会导致结构损伤的局部化 ,能否识别出这些薄弱点对结构的延寿修复具有重要意义。本文采用损伤耦合有限元法对各种高温构件进行分析 ,在蠕变损伤观点的基础上发展高温构件延寿修复的结构弱点分析技术 ,并对典型高温构件的延寿修复提出了指导建议。 |
| 关 键 词： | 高温 损伤力学 有限元 延寿 弱点分析 |
| 文章编号： | 1001-4837(2004)09-0001-08 |
| 修稿时间： | 2004-08-28 |
Structural Weakness Spotting for Life Extension Repair of High Temperature Components |
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| TU Shan-tung ,,WANG Zheng-dong,CHEN Jian-jun,GONG Jian-ming. Structural Weakness Spotting for Life Extension Repair of High Temperature Components[J]. Pressure Vessel Technology, 2004, 21(9): 1-8 | |
| Authors: | TU Shan-tung WANG Zheng-dong CHEN Jian-jun GONG Jian-ming |
| Affiliation: | TU Shan-tung 1,2,WANG Zheng-dong1,CHEN Jian-jun2,GONG Jian-ming2 |
| Abstract: | In engineering structure, weak points may appear at a location with sudden changes of geometry, metallurgical discontinuities and non-uniform distribution of load after a certain period of service. The identification of the weak points is essential for inspection and life extension repair of the structures. Aiming at the development of structural weakness spotting techniques for the life extension repair of high temperature components from the viewpoint of creep damage, various high temperature structures are analyzed by using damage coupled finite element method. Guidelines for life extension repair are proposed for typical high temperature components. |
| Keywords: | high temperature damage mechanics FEM life extension weakness spotting |
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