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| Naji, M. |
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| Motta, Antonella |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Kočí, Jan | Prague |
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| Azam, Siraj |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Venkata, Kiranmayi Abburi
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2022Accurate numerical prediction of thermo-mechanical behaviour and phase fractions in SLM components of advanced high strength steels for automotive applicationscitations
- 2016Characterising electron beam welded dissimilar metal joints to study residual stress relaxation from specimen extractioncitations
- 2016Interaction of Residual Stresses With Applied Stresses in a Dissimilar Metal Electron Beam Welded Specimencitations
- 2016Relaxation of residual stresses when extracting a specimen from a dissimilar metal electron beam welded plate
- 2015Characterising Residual Stresses in a Dissimilar Metal Electron Beam Welded Platecitations
- 2014Study on the effect of post weld heat treatment parameters on the relaxation of welding residual stresses in electron beam welded P91 steel platescitations
- 2013Residual stresses in laser welded ASTM A387 Grade 91 steel platescitations
- 2013Finite Element Simulation of Laser Welding in a P91 Steel Platecitations
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document
Relaxation of residual stresses when extracting a specimen from a dissimilar metal electron beam welded plate
Abstract
To study the extent of residual stress relaxation and characterise the final residual stresses, neutron diffraction measurements and three-dimensional finite element analysis were conducted on a compact tension, C(T) specimen.The specimen was extracted from a dissimilar metal electron beam (EB) welded plate, in the as-welded condition.This was done as a preliminary step to examining crack growth and fracture of a C(T) specimen subjected to applied loads in the presence of residual stresses. The dissimilar metal weld was made from austenitic AISI 316LN stainless steel and a ferritic/martensitic P91 steel, using the EB welding process. The C(T) specimen was extracted from the sample plate using wire-cut electron discharge machining (EDM). The specimen was then measured on the neutron strain diffractometer, E3, at the Helmhotlz Zentrum Berlin (HZB), in Germany. A finite element model was created using the ABAQUS code to simulate the extraction of the specimen from the welded plate, predict the residual stress relaxation and compare with measurements. This paper presents the details of the specimen extraction, the neutron diffraction experiments and the finite element model. The predicted and the measured residual stresses, after specimen extraction are compared with the as-welded residual stresses and the extent of stress relaxation observed.