Advanced Steel Construction

Vol. 2, No. 3, pp. 236-241 (2006)


OPTIMIZATION OF GROOVE DESIGN IN THICK PLATES WELDING

 

Jia Liwei, Zhou Hongbin and Zhang Mingli

Civil Engineering and Mechanics Institute, YANSHAN University,

Qinhuangdao, Hebei province, P.R.China,066004

Tel:0335-8067926

Fax:0335-8057101

Email:This email address is being protected from spambots. You need JavaScript enabled to view it.

 

DOI:10.18057/IJASC.2006.2.3.4

 

View Article   Export Citation: Plain Text | RIS | Endnote

ABSTRACT

Groove design affects thick plates’ residual stress distribution seriously. So optimization of groove design in thick plates’ welding is an important work. In order to do this work better we use finite element method to quantitatively evaluate the effects of groove design. Groove design plays a very important role in residual stress distribution. Although we may butt weld two thick plates together by several kinds of groove design, the final residual stress distribution will be different.

In this paper we use three kinds of groove design to butt weld two same thick plates together. Thickness of the plate is 25mm. Finite element method has been employed to evaluate the final residual stress distribution. Utilizing of ANSYS code is efficient when we try to find the residual stress distributions by finite element method. Some functions of ANSYS such as “couple field” and “element birth and death” are adopted. Temperature related  thermophysical material properties are considered. Some necessary measurements should be used to prevent convergence problems in this nonlinear analysis procedure.

The results suggest clearly that different groove design induces different residual stress distribution. We should take care of groove design before welding. Also numerical analysis of residual stress can help us to estimate residual stress distribution efficiently. At last we give some suggestions about thick plates groove design.

 

KEYWORDS

residual stress(RS), finite element method(FEM), thick plate, groove design(GD), weld


REFERENCES

[1] David, Attcridgc,M.Bcckcr,K.Khan,L.Meckisho,B.Tahmascbi,andL.Zhang.“Finitc element modeling of residual stresses in electroslag butt welds", http://ntl.bts.gov/ sce508/fmitc.pdf ,2000.pp.52-55

[2] Kriedman, K., 1975, “Thermomechanical Analysis of the Welding ProccssUsing the Finite Element Method,” ASME J.Pressure Vessel Tcchnol., 97,Aug..pp.206-213.

[3 ]  Erickc, S., Keim, E„ and Schmidt, J., 1998, “Numeric Determination of Residual Weld Stresses," Proceedings.ICES'98, October 7-9, Atlanta.

[4]  (ioldak, J, et al., 1998, “Progress and Pacing Trends in Computational WeldMcchanics." Proceedings, ICES'98, October 7- 9, Atlanta.Atluri.S.N., cd.

[5] Mill, Michael R.and Nelson.Drew V,"Determining residual stress through the thickness of a welded plate”.Proceedings of the 1996 ASME Pressure Vessels and Piping Conference. ASME, New York,l996.vol 327, pp.29-36

[6] Kamichika, R., Yada, 1..and Okamoto, A., 1974, “Internal Stresses in ThickPlatcs Weld-Overlaid with Austenitic Stainless Steel -Report 2!,"Trans.Jpn.Welding Soc., 5, No.1, Apr.

[7] LiGuoQiang."DuoGaoCcngJianZHuGangJicGouSHeJi".ZHongGuoJianZFIuGongYc prcss,2004,pp.35

[8] Li Jiang."SanWciHanJicRcYingLiMcCanYuYingLiYanMuaXuNiFcnXiJiSHuYanJiu", Dissertation for the Master Degree in Engineering GuangXi university,2002.pp.66-75

[9]  Li Ying min.Cui Baoxia and Su Shifang,"Ji Suan Ji Zai Cai Liao iia Gong Ling Yu Zhong Dc Ying Yong “.China Machine Prcss.2001.pp.74

[10] P.Dong and F.W.I3rust."Wclding residual stresses and effects on fracture in pressure vessel and piping components: a millennium review and beyond" Journal of Pressure Vessel Technology.2000 ,vol!22:3,pp329-338

[11] WangJianllua.'IIan Jic Shu Zhi Mo Ni Ji Shu Ji Ying Yong" .Shanghai Jiao Tong University Press ,2003,pp.l56

[12] ZhangWenyue."Han Jie Chuan Re Xue”, China Machine Press.l987.pp.11-17

[13] Zhang, X.Richard and Xu,Xianfan,"Finitc element analysis of pulsed laser bending: The effect of melting and solidification." Journal of Applied Mechanics, Transactions ASME, 2004,vol.71 :,3,pp.321 -326