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管子对接多道焊接计算效率与精度分析 被引量:2

Analysis on calculation accuracy and efficiency of multi-pass butt weld of pipe
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摘要 研究了焊接分段移动热源和焊接区网格尺寸对管子对接焊接过程计算精度和效率的影响,得到一种相对合理的网格尺寸和热源的分段方法以满足大型管子焊接应力三维模拟计算精度和效率的要求.结果表明,焊接区和热影响区的网格尺寸≤3.3mm,并且采用分段移动热源的方法,可以满足计算精度的要求,并大大的提高了三维模拟计算的效率. The influence of segments heat source and mesh size on calculation accuracy and efficiency of 3-D EFA of multi-pass butt-welded pipe were investigated. The methods can meet the demand of calculation accuracy and high efficiency of 3D finite element simulation of large pipes. The results show that the mesh size below or equals to 3.3mm can meet the accuracy requirement,the segment heat source,which has little efficiencies on calculation accuracy,can improve the calculations efficiency greatly.
出处 《焊接学报》 EI CAS CSCD 北大核心 2010年第7期39-42,共4页 Transactions of The China Welding Institution
基金 国家自然科学基金资助项目(50505019 50935008)
关键词 SUS304不锈钢 多道对接焊接 分段移动热源 网格尺寸 SUS304 multi-pass butt welding segment heat source mesh size
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参考文献13

  • 1Xu Jijin, Chen Ligong, Ni Chunzhen. Effect of vibratory weld conditioning on the residual stresses and distortion in multipass girth-butt welded pipes[J]. Inernational Journal of Pressure Vessels and Piping, 2007, 84 : 298 - 303.
  • 2Jiang Wei, Yahiaoui Kadda, Hall Frank R. Finite element predictions of temperature distributions in a multipass welded piping branch junction [ J ]. Journal of Pressure Vessel Technology, 2001, 127:1-7.
  • 3Jiang W, Yahiaoui K, Hall F R, et al. Finite element simulation of muhipass welding: full three-dimensional versus generalized plane strain or axisymmetric models[ J]. The Journal of Strain Analysis for Engineering Design, 2005, 40 : 587 - 597.
  • 4Senchenkov I K. Thermomechanical model of growing cylindrical bodies made of physically nonlinear materials [ J ]. International Applied Mechanics, 2005, 41 : 1059 - 1065.
  • 5Lindgren L E. Numerical modelling of welding [ J ]. Computer Methods in Applied Mechanicas and Engineering, 2006, 195: 6710 - 6736.
  • 6Briekstad B, Josefson B L. A Parametric study of residual stresses in multi-pass butt-welded stainless steel pipes [ J ]. International Journal of Pressure Vessels Piping, 1998, 75 : 11 - 25.
  • 7Mochizuki M, Hattori T, Nakakado K, Residual Stress reduction and fatigue strength improvement by controlling welding pass sequences[J]. Journal of Engineering Materials and Technology, 2000, 122:108-112.
  • 8Dean Deng, Hidekazu Murakawa. Numerical simulation of temperature field and residual stress in muhipass welds in stainless steel pipe and comparison with experimental measurements [ J ]. Computational Materials Science, 2006, 37 : 269 - 277.
  • 9Murugan S, Rai S K, Kumar P V, et al. Temperature distribution and residual stresses due to muhipass welding in type 304 stainless and low carbon steel weld pads[J ]. International Journal of Pressure Vessels and Piping, 2001,78(1 ) : 307 -317.
  • 10Duranton P, DevauxJ, Robin V, et al. Bergheau. 3D modelling of multipass welding of a 316L stainless steel pipe[ J]. Journal of Materials Processing Technology, 2004, 153 - 154 : 457 - 463.

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