The Strain Capacity of the Girth Weld Joint Cracked at ”Near-seam Zone”

摘要：

　　The specimens of girth weld joint of 0813mmxl4.7mm pipeline cracked at ”near-seam zone77 in tensile test.It was considered unacceptable for strain-based design pipelines in some current standards.The girth weld joint for X70 pipelines with ”near-seam zone” crack were researched by CWP test and single-edge notch test(SENT).The high strain capacity is demonstrated by resistance curve tangency approach and CWP test results.The results imply the considerable tensile fracture resistance and consequently strain capacity when the strength overmatch..

关键词： strain-based design weld joint tensile strain capacity Single-Edge notch tensile test curved wide plate test

作者: Hongyuan Chen Jicheng Ren Yaolong Wang Lingkang Ji Qiang Chi Peng Wang Lihua Qi

作者单位: School of Materials science & engineering,Xian Jiaotong University Xi” an,Shaanxi, P.R.China;China N China National Petroleum Corporation,Tubular Goods Research Institute Xi” an,Shannxi, P. R.China;Key

会议类型: 国内会议

会议名称: 2015年油气输送管道高强度管线钢研究与应用技术国际研习会

会议地点: 西安

会议语种:英文

页码: 1-7

在线出版日期: 2015-04-27（万方平台首次上网日期，不代表论文的发表时间）