[1]王飞,蒋诚航,许根富,等.内压、弯矩组合载荷作用下未焊透管道的安全评价方法研究[J].中国安全生产科学技术,2016,12(4):180-184.[doi:10.11731/j.issn.1673-193x.2016.04.033]
WANG Fei,JIANG Chenghang,XU Genfu,et al.Study on safety evaluation method of incomplete penetration welded pipeline
under combined loads of internal pressure and bending moment[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(4):180-184.[doi:10.11731/j.issn.1673-193x.2016.04.033]
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内压、弯矩组合载荷作用下未焊透管道的安全评价方法研究
WANG Fei,JIANG Chenghang,XU Genfu,et al.Study on safety evaluation method of incomplete penetration welded pipeline under combined loads of internal pressure and bending moment[J].JOURNAL OF SAFETY SCIENCE AND TECHNOLOGY,2016,12(4):180-184.[doi:10.11731/j.issn.1673-193x.2016.04.033]
《中国安全生产科学技术》[ISSN:1673-193X/CN:11-5335/TB]
- 卷:
- 12
- 期数:
- 2016年4期
- 页码:
- 180-184
- 栏目:
- 现代职业安全卫生管理与技术
- 出版日期:
- 2016-04-30
文章信息/Info
- Title:
- Study on safety evaluation method of incomplete penetration welded pipeline under combined loads of internal pressure and bending moment
- Keywords:
- incomplete penetration welded defect; limit load; nonlinear analysis; experimental study; safety evaluation
- 分类号:
- X913.4
- 文献标志码:
- A
- 摘要:
- 未焊透缺陷是压力管道焊接接头常见的一种缺陷，严重时可导致管道的承载能力明显降低，进而引发严重的安全事故。为了研究未焊透缺陷对管道安全性的影响，提出了采用非线性有限元分析方法，对含未焊透缺陷压力管道的影响因素进行简化，通过研究其极限内压和极限弯矩随未焊透深度、环向长度等影响因素的变化规律，进一步获得了单一载荷作用下的含未焊透缺陷压力管道的极限载荷估算公式和极限载荷曲线簇。最终在试验验证基础上建立一种未焊透管道的安全评价方法，并通过试验验证结果表明该方法可用于含缺陷工业管道的安全评定是可行的。
- Abstract:
- Incomplete penetration welded defect is one of common defects in the welded joint of pressure pipeline, which may cause a significant reduction in the carrying capacity of pipeline and lead to serious safety accidents. In order to study the influence of incomplete penetration welded defect on pipeline safety, it was proposed to simplify the influencing factors of pressure pipeline with incomplete penetration welded defect by using the nonlinear finite element analysis method. Through studying the change laws of limit internal pressure and limit bending moment with the influencing factors such as incomplete penetration welded depth and circumferential length etc., the limit load estimation formula and limit load curve clusters of pressure pipeline with incomplete penetration welded defect under single load were obtained. On the basis of test verification, a safety evaluation method of incomplete penetration welded pipeline was established, which is feasible for the safety assessment of industrial pipeline with defects.
参考文献/References:
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备注/Memo
- 备注/Memo:
- 国家质量监督检验检疫总局科技计划项目(2014QK158)；浙江省质监系统科技计划项目（20150237）
