压力容器2013，Vol.30Issue(1)：20-23,30,5.DOI:10.3969/j.issn.1001-4837.2013.01.003
影响含腐蚀缺陷管道剩余强度的参数分析
Parameters Analysis of Remaining Strength Assessment of Pipeline with Corrosion Defects
摘要
Abstract
The influence of the parameters including bulging factor,flow stress,corrosion area and defect shape on the remaining strength of pipeline are compared among the several popular methods, such as ASME B31G,API 579 ,DNV RP - F101 and PCORRC. The results show that the higher the pipeline steel grade is,the differences among the flow stresses defined from different assessment methods will be less significant. Formula NG -18 can only used in case of defects with short length. Comparing the results from the above four assessment methods with explosion tests,the error amounts from ASME B31G method is larger than the results from DNV RP - F101 and PCORRC methods.关键词
管道/腐蚀缺陷/剩余强度/评价方法Key words
pipeline/corrosion defects/remaining strength/assessment methods分类
机械制造引用本文复制引用
段庆全,仇经纬,王建琳,杨鹏..影响含腐蚀缺陷管道剩余强度的参数分析[J].压力容器,2013,30(1):20-23,30,5.基金项目
中国石油大学(北京)青年教师专项培养基金项目(KYJJ2012-04-26) （北京）
