Mismatch effect on safety assessment of pressure pipe with incomplete penetration defect

摘要：

With orthogonal experiment design method and FEA solution of plastic limit load, safety assessment curves for pressure pipe with incomplete welding defect in three different strength match conditions were obtained. The result showed that the welding strength match factor had significant effect on safety assessment curves, the greater the welding strength match factor is, the larger the safety zone beyond the safety assessment curve, this means that the security of over-matching pipe is better than equal-matching and under-matching pipe. Finally, relation formula between the welding strength match factor and correlative coefficient of safety assessment curve was obtained by curve fitting.

关键词： Pressure pipe Incomplete welding defect Strength match Safety assessment

作者: Zhijiang Jin Chenghang Jiang Zhengping Jiang Huailei Yan

作者单位: Institute of Chemical Machinery and Process Equipment, Zhejiang University, Hangzhou 310027, China Zhejiang Shaxing Pharm. & Chem. Co., Ltd., Taizhou 317021, China

会议类型: 国际会议

会议名称: 2012 International Symposium on Structural Integrity 2012国际结构完整性学术研讨会 ISSI 2012

会议地点: 济南

会议语种:英文

页码: 87-91

在线出版日期: 2012-10-31（万方平台首次上网日期，不代表论文的发表时间）