|Table of Contents|

Numerical Simulation of Welding Stress-strain Field for Cold-formed Square Steel Tube with Higher Carbon Content(PDF)

《建筑科学与工程学报》[ISSN:1673-2049/CN:61-1442/TU]

Issue:
2010年02期
Page:
114-120
Research Field:
Publishing date:
2010-06-20

Info

Title:
Numerical Simulation of Welding Stress-strain Field for Cold-formed Square Steel Tube with Higher Carbon Content
Author(s):
HOU Gang;  TONG Le-wei
Department of Building Engineering, Tongji University, Shanghai 200092, China
Keywords:
cold-formed square steel tube;  welding;  microstructure;  residual stress;  numerical simulation;  carbon content
PACS:
TU392
DOI:
-
Abstract:
In order to exactly predict welding stress-strain field for cold-formed square steel tube with higher carbon content, welding processes were numerically simulated by using finite element software ABAQUS and double ellipsoidal heat source model. Two methods, namely considering the effect of microstructure field or not, were applied during numerical simulation. The action of microstructure field was exerted by introducing the volume expansion of material caused by martensitic change in cooling process. Analysis results show that the methods of considering the microstructure field effect can better predict the welding stress-strain field for cold-formed square steel tube with higher carbon content. The longitudinal residual stresses become much smaller at the position of weld, and the transversal residual stresses also become smaller near the weld, but much larger at the weld.

References:

[1] LEGGATT R H.Residual Stresses in Welded Structures[J].International Journal of Pressure Vessels and Piping,2008,85(3):144-151.
[2]FREE J A,PORTER GOFF R F D.Predicting Residual Stresses in Multi-pass Weldments with the Finite Element Method[J].Computers & Structures,1989,32(2):365-378.
[3]JG/T 178—2005,建筑结构用冷弯矩形钢管[S]. JG/T 178—2005,Cold-formed Rectangular Steel Tubes in Building Structures[S].
[4]BUCHMAYR B,KIRKALDY J S.Modeling of the Temperature Field Transformation Behavior Hardness and Mechanical Response of Low Alloy Steels During Cooling from the Austenite Region[J].Journal of Heat Treating,1990,8(2):127-136.
[5]KARLSSON L.Thermal Stresses in Welding[M].Amsterdam:Elsevier,1986:299-389.
[6]ANDREWS K W.Empirical Formulae for the Calculation of Some Transformation Temperature[J].JISI,1965,203:721-727.
[7]KOISTINEN D P,MARBURGER R E.A General Equation Prescribing the Extent of the Austenite-Martensite Transformation in Pure Iron Carbon Alloys and Plain Carbon Steels[J].Acta Metallur-gica,1959,7(1):59-60.
[8]DENG D,MURAKAWA H,LIANG W.Numerical and Experimental Investigations on Welding Residual Stress in Multi-pass Butt-welded Austenitic Strainless Steel Pipe[J].Computational Materials Science,2008,42(2):234-244.
[9]HAN H N,LEE C G,OH C S,et al.A Model for Deformation Behavior and Mechanically Induced Martensitic Transformation of Metastable Austenitic Steel[J].Acta Materialia,2004,52(17):5203-5214.
[10]CANAS J,PICON R,PARIS F,et al.A Simplified Numerical Analysis of Residual Stresses in Aluminum Welded Plates[J].Computers & Structures,1996,58(1):59-69.
[11]EN 1993-1-1,Eurocode 3:Design of Steel Structures[S].
[12]ZHU X K,CHAO Y J.Effects of Temperature-dependent Material Properties on Welding Simulation[J].Computers & Structures,2002,80(11):967-976.
[13]WEI J,YAHIAOUI K.Finite Element Prediction of Residual Stress Distributions in a Multipass Welded Piping Branch Junction[J].Journal of Pressure Vessel Technology,2007,129(4):601-608.
[14]GLICKSTEIN S S,FRIEDMAN E.Characterization and Modeling of the Heat Source[R].New York:ASM,1994:1141-1146.
[15]GOLADK J,CHAKRAVARITI A,BIBBY M.A New Finite Element Model for Welding Heat Sources[J].Metallurgical Transactions B,1984,15(2):299-305.
[16]曾 国,郭永进,于忠奇,等.辊弯成形方形型钢的残余应力[J].钢铁研究学报,2008,20(11):29-32. ZENG Guo,GUO Yong-jin,YU Zhong-qi,et al.Residual Stresses of Roll-formed Shape with Square Section[J].Journal of Iron and Steel Research,2008,20(11):29-32.
[17]YONG L P,TRAHAIR N S.Lateral Buckling Strengths of Cold-formed Rectangular Hollow Sections[J].Thin-walled Structures,1995,22(2):71-95.
[18]SIVAKUMARAN K S,ABDEL-RAHMAN N.A Finite Element Analysis Model for the Behavior of Cold-formed Steel Members[J].Thin-walled Structures,1998,31(4):305-324.
[19]MOEN C D,IGUSA T,SCHAFER B W.Prediction of Residual Stresses and Strains in Cold-formed Steel Members[J].Thin-walled Structures,2008,46(11):1274-1289.

Memo

Memo:
-
Last Update: 2010-06-20