管线钢及输送管的变形能力
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摘要
综述了管线钢及输送管的变形能力及相关指标。输送管的变形能力可用屈曲应变表示,一般具有Round-house形应力-应变关系、均匀塑性延伸率高、形变强化指数n高、屈强比低的管线钢的变形能力较高,组织通过影响应力-应变关系和屈强比影响变形能力,另外D/t增加变形能力提高。变形能力对工作于地震及地质灾害多发地区的埋地式管线的安全是非常重要的,国外已有相关产品,我国应加快这方面的研究。
The deformability and relevant property indexes of pipeline steel and delivery pipe have been summarized in this paper. The deformability of delivery pipe can be expressed in bucking strain. Generally, the higher deformability exists in the pipeline steel with the stress-strain curve like Round house, higher uniform plastic elongation percentage, higher deformation enhanced index N, and the lower yield tensile ratio. The influence on the stress-strain curve and yield tensile ratio can affect the deformability. In addition, the increase of D/t can also improve the deformability. Clearly, the deformability of delivery pipe is very important for buried pipeline working in the areas where earthquake and geology disasters frequently happen. Therefore, it is necessary for our country to accelerate the relevant research since delivery pipes with high deformability have been developed abroad.
The deformability and relevant property indexes of pipeline steel and delivery pipe have been summarized in this paper. The deformability of delivery pipe can be expressed in bucking strain. Generally, the higher deformability exists in the pipeline steel with the stress-strain curve like Round house, higher uniform plastic elongation percentage, higher deformation enhanced index N, and the lower yield tensile ratio. The influence on the stress-strain curve and yield tensile ratio can affect the deformability. In addition, the increase of D/t can also improve the deformability. Clearly, the deformability of delivery pipe is very important for buried pipeline working in the areas where earthquake and geology disasters frequently happen. Therefore, it is necessary for our country to accelerate the relevant research since delivery pipes with high deformability have been developed abroad.
引文
[1]李鹤林.油气输送钢管的发展动向与展望[J].焊管,2004,27(6).
[2]Aaron S Dinovitzer,Dr Raymond J,Smith.Strain-based pipeline design criteria review,International pipeline conference-V2,ASME1998.
[3]李晓红,辛希贤.高钢级天然气输送管线钢强度特性[J].焊管,2004,27(3).
[4]梁建文.地下管线抗震研究评述.世界地震工程[J].1995,(4).
[5]梁建文.地下管线抗震反映和稳定性研究评述[J].天津大学学报.1996,29(3).
[6]陈文化,孙巨平,徐兵.砂土地震液化的研究现状及发展趋势[J].世界地震工程,1999,15(1).
[7]Nobuyki Ishikawa,Shigeru Endo,Ryuji Muraoka,et al..Microstruc-tureal Aspect of Deformability of High Strength Linepipe Steels,Proceedings of the8th IUMRSInternational Conference on Advanced Materials,Yokohama Japan,2003.
[8]石川信行,远藤茂,村罔隆二.Effect of Microstructureal character-istics on Deformability of High Strength Linepipe Steel[J].CAMP-ISIJ,2004,17:314-317.
[9]Thomas Huper,Shigru Endo,Noboyuki ISHIKAWA,et al.Effect of volume fraction of constituent phases on the stress-strain relation-ship of dual phase steels.ISIJ International,1999,39(3):288-294.
[10]Nobuhisa Suzuki,Shigeru Endo,Masaki Yoshikawa,et al.Effects of a Strain Hardening Exponent on Inelastic Local Buckling Strength and Mechanical Properties of Line Pipes.Proceedings of OMAE01,2001[C].Rio de Janeiro,Brazil:2001.
[11]David W.Murray.Local buckling,strain localization,wrinkling and postbuckling response of line pipe.Engineering Structures,1997,19(5):360-171.
[12]John M.Eidinger,Michael O Rourke,Jeff Bachhuber.Performance of a pipeline at Fault Crossing.U.S.National Conference on Earth-quake Engineering(7NCEE)v.3;20020721-20020725;Boston,Ma.
[13]Yatabe H,Fukuda N,Kawaguchi S,et al.Effects of mechanical properties on the deformability of high grade linepipe.Proceedings of OMAE'01,OMAE2001[C]:MAT-3102,77-84.
[14]Naoki FUKUDA,Naoto HAGIWARA,Tomoki MASUDA.Effect of Prestrain on Tensile and Fracture Toughness.Proceedings of4th International Pipeline Conference,September29-October3,2002[C].Calgary,Alberta,Canada,2002.
[2]Aaron S Dinovitzer,Dr Raymond J,Smith.Strain-based pipeline design criteria review,International pipeline conference-V2,ASME1998.
[3]李晓红,辛希贤.高钢级天然气输送管线钢强度特性[J].焊管,2004,27(3).
[4]梁建文.地下管线抗震研究评述.世界地震工程[J].1995,(4).
[5]梁建文.地下管线抗震反映和稳定性研究评述[J].天津大学学报.1996,29(3).
[6]陈文化,孙巨平,徐兵.砂土地震液化的研究现状及发展趋势[J].世界地震工程,1999,15(1).
[7]Nobuyki Ishikawa,Shigeru Endo,Ryuji Muraoka,et al..Microstruc-tureal Aspect of Deformability of High Strength Linepipe Steels,Proceedings of the8th IUMRSInternational Conference on Advanced Materials,Yokohama Japan,2003.
[8]石川信行,远藤茂,村罔隆二.Effect of Microstructureal character-istics on Deformability of High Strength Linepipe Steel[J].CAMP-ISIJ,2004,17:314-317.
[9]Thomas Huper,Shigru Endo,Noboyuki ISHIKAWA,et al.Effect of volume fraction of constituent phases on the stress-strain relation-ship of dual phase steels.ISIJ International,1999,39(3):288-294.
[10]Nobuhisa Suzuki,Shigeru Endo,Masaki Yoshikawa,et al.Effects of a Strain Hardening Exponent on Inelastic Local Buckling Strength and Mechanical Properties of Line Pipes.Proceedings of OMAE01,2001[C].Rio de Janeiro,Brazil:2001.
[11]David W.Murray.Local buckling,strain localization,wrinkling and postbuckling response of line pipe.Engineering Structures,1997,19(5):360-171.
[12]John M.Eidinger,Michael O Rourke,Jeff Bachhuber.Performance of a pipeline at Fault Crossing.U.S.National Conference on Earth-quake Engineering(7NCEE)v.3;20020721-20020725;Boston,Ma.
[13]Yatabe H,Fukuda N,Kawaguchi S,et al.Effects of mechanical properties on the deformability of high grade linepipe.Proceedings of OMAE'01,OMAE2001[C]:MAT-3102,77-84.
[14]Naoki FUKUDA,Naoto HAGIWARA,Tomoki MASUDA.Effect of Prestrain on Tensile and Fracture Toughness.Proceedings of4th International Pipeline Conference,September29-October3,2002[C].Calgary,Alberta,Canada,2002.
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