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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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Davey, Keith
University of Manchester
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2022Scaled cohesive zone models for fatigue crack propagationcitations
- 2022A Two-Experiment Approach to Scaling in Biomechanicscitations
- 2020Exact and inexact scaled models for hot forgingcitations
- 2018A computationally efficient cohesive zone model for fatiguecitations
- 2018Experimental investigation into finite similitude for metal forming processescitations
- 2017Frequency-Dependent Cohesive Zone Models for Fatiguecitations
- 2011Analytical solutions for vibrating fractal composite rods and beamscitations
- 2009Vertical twin roll casting process of Mg alloy with high aluminium contents
- 2007A solution methodology for contacting domains in pressure die castingcitations
- 2007Mechanical properties and metallugical qualities of magnesium alloy sheets manufactured by twin-roll castingcitations
- 2006Boundary element stress analysis for bi-metallic dies in pressure diecastingcitations
- 2006Boundary element stress analysis for copper-based dies in pressure die castingcitations
- 2006Bi-metallic dies for rapid die castingcitations
- 2006Experimental investigation into the thermal behavior of copper-alloyed dies in pressure die castingcitations
- 2005Effects of rolling condition on warm deep drawability of magnesium alloy sheets produced by twin-roll strip castingcitations
- 2004An Experimental Study Of the Pressure Die Casting Process
- 2004Forming Characteristics of cast magnesium alloy sheets manufactured by roll strip casting processcitations
- 2004Semi-solid manufacturing process of magnesium alloys by twin-roll castingcitations
- 2004An experimental study of the pressure die casting process
- 2003Mechanical properties of magnesium alloy sheets produced by semi-solid roll strip casting
- 2002The practicalities of ring rolling simulation for profiled ringscitations
- 2002The effect of vibration on surface finish for semisolid and cast componentscitations
- 2002A practical method for finite element ring rolling simulation using the ALE flow formulationcitations
- 2002Optimization for boiling heat transfer determination and enhancement in pressure die castingcitations
- 2001Novel cooling channel shapes in pressure die castingcitations
- 2001Efficient strategies for the simulation of railway wheel formingcitations
- 2000An experimental and numerical investigation into the thermal behavior of the pressure die casting processcitations
- 2000Determination of heat transfer coefficients using a 1-d flow model applied to irregular shaped cooling channels in pressure diecastingcitations
- 2000Predicting heat extraction due to boiling in the cooling channels during the pressure die casting processcitations
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article
A solution methodology for contacting domains in pressure die casting
Abstract
Multi-domain elastostatic problems can often be efficiently solved using coupled single domain iterative techniques. A particular difficulty however is the decrease in convergence rate associated with the increase in number of solution domains. Further convergence difficulties are encountered for multi-domain problems where contacting domains suffer variable contact conditions. Problems of this type are evident in pressure die casting with die blocks coupled together prior and subsequent to thermal loading. Particular interest in this paper is the development of an efficient solution methodology for prediction of gaps at block interfaces in pressure die casting. The methodology developed incorporates a coarse preconditioner designed to enhance the overall system stability. The governing equations across domains are coupled by means of a multiplicative-Schwarz method for non-overlapping domains, as focus is on the use of serial processing. The coarse preconditioner is obtained from a crude representation of the global system of equations although high accuracy is generally required at the contacting interfaces. Attention is restricted to thermo-elastostatic problems arising in pressure die casting with domains connected through spring interfaces. The effect of lowering and increasing the interfacial stiffness coefficients between domains is investigated. In addition, it is demonstrated how variable contact arising through thermally induced distortion is accounted for by the removal and attachment of interface springs. The coarse preconditioner is shown to be particularly beneficial to variable contact problems providing stability to the overall assembly. Computation times are determined for the iterative procedures and for elimination techniques indicating the relative benefits for problems of this nature. In addition, predictions are compared against experiment results to demonstrate the practical worth of the method for predicting gaps at die interfaces and the consequential flashing that can often result. © 2006 Elsevier Inc. All rights reserved.