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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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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
Finite Element Simulation of Laser Welding in a P91 Steel Plate
Abstract
New methods for joining materials used in advanced nuclear power plants are of interest to increase the efficiency and productivity. Optimised joints require narrow heat affected zones, low residual stress, strain and distortion. This requires research into a large range of aspects including the nature of the joining processes, characterisation of the joint materials and the integrity of joints in manufacture and service. Of particular interest is the laser welding of the P91 steel used extensively in the power plants. The objective of this paper is to fully characterise the laser welding process using numerical modelling techniques and compare the measured residual stresses for P91 steel welds induced by the welding process with the predicted residual stresses by numerical simulation. The FE simulation consists of thermal analysis and a sequentially coupled structural analysis. Solid state phase transformation is included in the analysis to account for the volumetric changes due to martensitic transformation during cooling. The neutron diffraction technique is used to measure the residual stresses in the welded plate. The measurements are compared with the simulation results and the characteristics of the residual stress distribution and the influence of phase transformations are discussed.