3D thermal finite element analysis of single pass girth welded low carbon steel pipe-flange joints

Muhammad ABID; Muhammad Jawad QARNI

Makale detayları

3D thermal finite element analysis of single pass girth welded low carbon steel pipe-flange joints

Yazarlar:

Muhammad ABID | Muhammad Jawad QARNI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2009 Vol.33 Issue 4, pp.281-294

Belge Tipi:

Makale

Yayın Tarihi:

3/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000744751

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160

Özet:

 

This paper presents a detailed computational procedure for  predicting the complete thermal history including transient  temperature distribution during girth welding and subsequent post weld  cooling of low carbon steel pipe flange joints.  Using the FE code  ABAQUS, 3-dimensional non-linear heat transfer analysis is carried out  to simulate gas metal arc welding (GMAW) process.  ANSI Class #300  flange is used with a 6 mm thick, 200 mm long and 100 mm nominal  diameter pipe.  Joint type is a single `V-groove' butt joint with a  1.2 mm root opening.  FORTRAN subroutine is utilized for the  application of volumetric heat flux from the weld torch using Goldak's  double ellipsoidal heat source model, which is based on Gaussian power  density distribution.  Temperature dependent thermal properties as  well as phase change effects have also been accounted.  Apart from  comprehensive discussion on the thermal history, in-depth analysis of  the axial temperature profile at four different sections on both sides  of the weld joint is presented.  The simulated results showed that the  temperature distribution around the implemented heat source model is  steady when the weld torch moves around the circumferential joint.  The present simulation model can be used as a proper tool to  investigate the effect of different GMAW process parameters.

 

This paper presents a detailed computational procedure for  predicting the complete thermal history including transient  temperature distribution during girth welding and subsequent post weld  cooling of low carbon steel pipe flange joints.  Using the FE code  ABAQUS, 3-dimensional non-linear heat transfer analysis is carried out  to simulate gas metal arc welding (GMAW) process.  ANSI Class #300  flange is used with a 6 mm thick, 200 mm long and 100 mm nominal  diameter pipe.  Joint type is a single `V-groove' butt joint with a  1.2 mm root opening.  FORTRAN subroutine is utilized for the  application of volumetric heat flux from the weld torch using Goldak's  double ellipsoidal heat source model, which is based on Gaussian power  density distribution.  Temperature dependent thermal properties as  well as phase change effects have also been accounted.  Apart from  comprehensive discussion on the thermal history, in-depth analysis of  the axial temperature profile at four different sections on both sides  of the weld joint is presented.  The simulated results showed that the  temperature distribution around the implemented heat source model is  steady when the weld torch moves around the circumferential joint.  The present simulation model can be used as a proper tool to  investigate the effect of different GMAW process parameters.

Makale detayları

3D thermal finite element analysis of single pass girth welded low carbon steel pipe-flange joints

Yazarlar: Muhammad ABID | Muhammad Jawad QARNI

Yayıncı: TUBITAK

Dergi: Turkish Journal of Engineering and Environmental Sciences 2009 Vol.33 Issue 4, pp.281-294

Belge Tipi: Makale

Yayın Tarihi: 3/2009

Belge Dili: Türkçe

Document ID (Org No.): 2000744751

Sıklık: Üç Yıllık

eISSN: 1303-6157

pISSN: 1300-0160

Sayı

Yazarlar:

Muhammad ABID | Muhammad Jawad QARNI

Yayıncı:

TUBITAK

Dergi:

Turkish Journal of Engineering and Environmental Sciences 2009 Vol.33 Issue 4, pp.281-294

Belge Tipi:

Makale

Yayın Tarihi:

3/2009

Belge Dili:

Türkçe

Document ID (Org No.):

2000744751

Sıklık:

Üç Yıllık

eISSN:

1303-6157

pISSN:

1300-0160