Application of Charpy Impact Absorbed Energy to the Safety Assessment Based on SINTAP  

作　　者：王东坡 邓彩艳 张玉凤 霍立兴 

机构地区：[1]School of Materials Science and Engineering Tianjin University,Tianjin 300072,China

出　　处：《Transactions of Tianjin University》2006年第2期116-120,共5页天津大学学报（英文版）

基　　金：Supported by National Natural Science Foundation of China(No. 50375109)

摘　　要：The European Structural Integrity Assessment Procedure（SINTAP） was applied to the assessment of welded joints of the API 5L X65 pipeline steel with an assumed embedded flaw and surface flaw at the weld toe. At default level（ level 0）, the assessment point was established by esti- mating fracture toughness value K1c conservatively from Charpy energy test data. At the same time, the analysis level 1 （basic level）was applied based on the fracture toughness CTOD. Then the two assessment levels were compared. The assessment results show that all assessment points are located within the failure lines of analysis levels 0 and 1. So the welded joint of the pipeline is safe. It can be concluded that the assessment based on Charpy absorbed energy is practicable when other fracture toughness data are not available, or cannot be easily obtained. The results are conservative.欧洲结构的正直评价过程(SINTAP ) 在焊接脚趾与一个假定嵌入的缺陷和表面缺陷被用于对 API 5L X65 管道钢的焊接关节的评价。在缺省水平(水平()) ，评价点被从 Charpy 精力测试数据保存地估计破裂坚韧价值 K_lc 建立。同时，分析水平(基本水平) 1 基于破裂坚韧 CTOD 被使用。然后，二个评价层次被比较。所有评价点位于分析的失败线以内的评价结果表演铺平 0 并且 t。管道的焊接关节因此是安全的。评价基于 Charpy 吸收了精力，这能被结束当另外的破裂坚韧数据不是可得到的时，是适用的，或不能容易被获得。结果是保守的。

关 键 词：failure assessment diagram Charpy impact energy CTOD safety assessment 

分 类 号：TG441[金属学及工艺—焊接]