Abstract
and quenching, manufacture of five closely spaced girth welds in a single assembly, and then separation into five individual weldments. Detailed welding records were kept, to allow subsequent calibration of weld heat source models. Residual stresses were measured using diverse methods (incremental deep hole drilling and the contour method), in both the aswelded condition and after thermal ageing at 650C. The measurements showed good agreement, providing reliable validation targets for predicted residual stresses in both states. Detailed mechanical property characterisation was performed on both parent material and weld metal, comprising monotonic and isothermal cyclic testing over a range of temperatures from ambient up to 1000C. The test data were used to derive a range of Lemaitre-Chaboche mixed isotropic-kinematic model parameter sets for use in finite element simulation. These welds and their supporting characterisation comprise a reliable benchmark for weld residual stress simulation in an engineering-scale weldment.
| Original language | English |
|---|---|
| Pages (from-to) | 233-250 |
| Number of pages | 18 |
| Journal | International Journal of Pressure Vessels and Piping |
| Volume | 172 |
| Early online date | 9 Jan 2019 |
| DOIs | |
| Publication status | Published - 1 May 2019 |
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ASJC Scopus subject areas
- Materials Science(all)
- Mechanics of Materials
- Mechanical Engineering
Cite this
Validated prediction of weld residual stresses in austenitic steel pipe girth welds before and after thermal ageing, Part 1: Mock-up manufacture, residual stress measurements, and materials characterisation. / Smith, MC; Muransky, O; Xiong, Q ; Bouchard, John; Mathew, Jino; Austin , C.
In: International Journal of Pressure Vessels and Piping, Vol. 172, 01.05.2019, p. 233-250.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Validated prediction of weld residual stresses in austenitic steel pipe girth welds before and after thermal ageing, Part 1:
T2 - Mock-up manufacture, residual stress measurements, and materials characterisation
AU - Smith, MC
AU - Muransky, O
AU - Xiong, Q
AU - Bouchard, John
AU - Mathew, Jino
AU - Austin , C
PY - 2019/5/1
Y1 - 2019/5/1
N2 - A series of engineering-scale multi-pass pipe girth weld mock-ups were manufactured using conventional manual metal arc techniques from Esshete 1250 austenitic steel. They were characterised in detail, in order to provide validation benchmarks for finite element prediction of weld residual stresses. The fabrication sequence comprised initial solution heat treatmentand quenching, manufacture of five closely spaced girth welds in a single assembly, and then separation into five individual weldments. Detailed welding records were kept, to allow subsequent calibration of weld heat source models. Residual stresses were measured using diverse methods (incremental deep hole drilling and the contour method), in both the aswelded condition and after thermal ageing at 650C. The measurements showed good agreement, providing reliable validation targets for predicted residual stresses in both states. Detailed mechanical property characterisation was performed on both parent material and weld metal, comprising monotonic and isothermal cyclic testing over a range of temperatures from ambient up to 1000C. The test data were used to derive a range of Lemaitre-Chaboche mixed isotropic-kinematic model parameter sets for use in finite element simulation. These welds and their supporting characterisation comprise a reliable benchmark for weld residual stress simulation in an engineering-scale weldment.
AB - A series of engineering-scale multi-pass pipe girth weld mock-ups were manufactured using conventional manual metal arc techniques from Esshete 1250 austenitic steel. They were characterised in detail, in order to provide validation benchmarks for finite element prediction of weld residual stresses. The fabrication sequence comprised initial solution heat treatmentand quenching, manufacture of five closely spaced girth welds in a single assembly, and then separation into five individual weldments. Detailed welding records were kept, to allow subsequent calibration of weld heat source models. Residual stresses were measured using diverse methods (incremental deep hole drilling and the contour method), in both the aswelded condition and after thermal ageing at 650C. The measurements showed good agreement, providing reliable validation targets for predicted residual stresses in both states. Detailed mechanical property characterisation was performed on both parent material and weld metal, comprising monotonic and isothermal cyclic testing over a range of temperatures from ambient up to 1000C. The test data were used to derive a range of Lemaitre-Chaboche mixed isotropic-kinematic model parameter sets for use in finite element simulation. These welds and their supporting characterisation comprise a reliable benchmark for weld residual stress simulation in an engineering-scale weldment.
UR - http://www.scopus.com/inward/record.url?scp=85063883396&partnerID=8YFLogxK
U2 - 10.1016/j.ijpvp.2019.01.004
DO - 10.1016/j.ijpvp.2019.01.004
M3 - Article
VL - 172
SP - 233
EP - 250
JO - International Journal of Pressure Vessels and Piping
JF - International Journal of Pressure Vessels and Piping
SN - 0308-0161
ER -