In this paper finite element simulation and neutron diffraction measurements are employed to assess the residual stresses in an AISI 316LN austenitic stainless steel plate containing a three-pass finite length weld in a machined slot. This work forms a part of the Task Group 4 (TG4) measurement and simulation round robin being undertaken by the NeT European network. Finite element (FE) simulations were carried out using the FEAT-WMT and ABAQUS commercial finite element packages. The welding process was modelled both using a 3D moving-heat source (MHS) which is spatially correct but computationally expensive and using a simplified “block-dumped” methodology (BD) in which an entire weld bead is deposited simultaneously. This does not reproduce the effects of welding torch movement, but is computationally less expensive. The mechanical analyses used combined isotropic-kinematic material constitutive models with a two-stage annealing functionality to remove plastic strain accumulated at high temperatures. The finite element predictions of weld residual stress are compared with neutron diffraction measurements obtained on the KOWARI diffractometer at the OPAL reactor at ANSTO.
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ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference
July 18–22, 2010
Bellevue, Washington, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-49255
PROCEEDINGS PAPER
Analysis of Residual Stresses in Three-Pass Slot Weld (NeT-TG4): Finite Element Modelling and Neutron Diffraction
Ondrej Mura´nsky,
Ondrej Mura´nsky
ANSTO, Kirrawee, NSW, Australia
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Philip J. Bendeich,
Philip J. Bendeich
ANSTO, Kirrawee, NSW, Australia
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Mike C. Smith,
Mike C. Smith
British Energy Generation, Barnwood, Gloucester, UK
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Oliver Kirstein,
Oliver Kirstein
ANSTO, Kirrawee, NSW, Australia
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Lyndon Edwards,
Lyndon Edwards
ANSTO, Kirrawee, NSW, Australia
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Tom M. Holden
Tom M. Holden
Northern Stress Technologies, Deep River, ON, Canada
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Ondrej Mura´nsky
ANSTO, Kirrawee, NSW, Australia
Philip J. Bendeich
ANSTO, Kirrawee, NSW, Australia
Mike C. Smith
British Energy Generation, Barnwood, Gloucester, UK
Oliver Kirstein
ANSTO, Kirrawee, NSW, Australia
Lyndon Edwards
ANSTO, Kirrawee, NSW, Australia
Tom M. Holden
Northern Stress Technologies, Deep River, ON, Canada
Paper No:
PVP2010-25290, pp. 1299-1305; 7 pages
Published Online:
January 10, 2011
Citation
Mura´nsky, O, Bendeich, PJ, Smith, MC, Kirstein, O, Edwards, L, & Holden, TM. "Analysis of Residual Stresses in Three-Pass Slot Weld (NeT-TG4): Finite Element Modelling and Neutron Diffraction." Proceedings of the ASME 2010 Pressure Vessels and Piping Division/K-PVP Conference. ASME 2010 Pressure Vessels and Piping Conference: Volume 6, Parts A and B. Bellevue, Washington, USA. July 18–22, 2010. pp. 1299-1305. ASME. https://doi.org/10.1115/PVP2010-25290
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