Showing results 21 to 38 of 38
  Numerical Simulation of Cold Roll Forming Process; Papeleux, Luc  ; Boman, Romain et alin Banabic, Dorel (Ed.) Proceedings of the 8th ESAFORM Conference on Material Forming (2005, April) Cold roll-forming process of a U profile is modelled and simulated. The simulation is based on a 3D finite element analysis with the help of the home made Metafor code. The prediction on dimensions and ... [more ▼] Cold roll-forming process of a U profile is modelled and simulated. The simulation is based on a 3D finite element analysis with the help of the home made Metafor code. The prediction on dimensions and deformed shape of the cold roll-formed sheet is in good agreement with the experimental results. Parametric study on roll forming parameters, such as the yield limit and the hardening property of materials, and the distance between stations is performed. [less ▲] Detailed reference viewed: 49 (11 ULg)Numerical simulation of springback using enhanced assumed strain elements; Papeleux, Luc ; Ponthot, Jean-Philippe in Journal of Materials Processing Technology (2004), 153(1), 314-318 The quality of springback prediction for a sheet metal forming process depends on a precise estimate of the elasto-plastic stress distribution throughout the metal sheet. The use of low-order conventional ... [more ▼] The quality of springback prediction for a sheet metal forming process depends on a precise estimate of the elasto-plastic stress distribution throughout the metal sheet. The use of low-order conventional finite elements may be, without any proper treatment, responsible for low quality prediction because of volumetric and shear lockings. In this study, the enhanced assumed strain technique will be exploited for locking removal. The quality of the numerical simulation is evaluated through a comparison with other popular techniques like selective and uniform reduced integration. In contrast to the latter, and thanks to a full numerical integration scheme, the enhanced assumed strain element is very efficient in accurately capturing the development of plastic flow. This enables a reliable prediction of springback even with a rather coarse mesh. (C) 2004 Elsevier B.V. All rights reserved. [less ▲] Detailed reference viewed: 22 (0 ULg)Prédiction numérique de l’angle de surformage en profilage à froidBoman, Romain ; Papeleux, Luc ; Ponthot, Jean-Philippe Report (2004) Detailed reference viewed: 1 (1 ULg)Efficient springback prediction based on Enhanced Assumed Strain Elements; Papeleux, Luc ; Ponthot, Jean-Philippe in Proceedings of COMPLAS 2003, VII International Conference on Computational Plasticity. Fundamentals and Applications (2003, April) Detailed reference viewed: 7 (2 ULg)Numerical simulation of Springback using enhanced assumed strain elements; Papeleux, Luc ; Ponthot, Jean-Philippe in Proceedings of AMPT 2003, Advances in Materials and Processing Technologies (2003) Detailed reference viewed: 6 (1 ULg)Simulation of Springback with Enhanced Assumed Strain Elements; ; Papeleux, Luc et alin Proceedings of NUMISHEET 2002 (2002, October) Detailed reference viewed: 16 (1 ULg)Finite element simulation of springback in sheet metal formingPapeleux, Luc ; Ponthot, Jean-Philippe in Journal of Materials Processing Technology (2002), 125(Sp. Iss. SI), 785-791 Although finite element analysis (FEA) is successful in simulating complex industrial sheet forming operations, the accurate and reliable application of this technique to springback has not been widely ... [more ▼] Although finite element analysis (FEA) is successful in simulating complex industrial sheet forming operations, the accurate and reliable application of this technique to springback has not been widely demonstrated. Several physical parameters, as well as numerical, influence this phenomenon and its numerical prediction. In this paper, we investigate the impact of these parameters on the springback appearing in a 2D U-draw bending. (C) 2002 Elsevier Science B.V. All rights reserved. [less ▲] Detailed reference viewed: 35 (2 ULg)Prédiction numérique de l’angle de surformage en profilage à froidBoman, Romain ; Papeleux, Luc ; Ponthot, Jean-Philippe Report (2002) Detailed reference viewed: 7 (1 ULg)Springback Prediction in Sheet Metal FormingPapeleux, Luc ; Ponthot, Jean-Philippe in Proceedings of ACOMEN 2002 (2002, May) Detailed reference viewed: 5 (1 ULg)Accurate prediction of Springback in Sheet Metal Forming; Papeleux, Luc ; et alin Proceedings of the 8th International Conference METAL FORMING 2000 (2000) Detailed reference viewed: 18 (1 ULg)FEM Simulation of Springback in Sheet Metal Forming; Papeleux, Luc ; et alin proceedings of Plasticity’2000 (2000) Detailed reference viewed: 15 (1 ULg)Numerical Simulation of Springback in Sheet Metal Forming Using Linear Shell ElementsPapeleux, Luc ; Ponthot, Jean-Philippe ; et alin Proceedings of IASS-IACM 2000, Fourth International Colloquium on Computation of Shell and Spatial Structure (2000) Detailed reference viewed: 9 (1 ULg)Numerical Simulation of Springback in Sheet Metal Forming Using Shell ElementsPapeleux, Luc ; ; et alin Proceedings of the Fifth National Belgian Congress on Theoretical and Applied Mechanics (2000) Detailed reference viewed: 15 (1 ULg)Numerical Simulation of Springback in Sheet Metal FormingPonthot, Jean-Philippe ; Papeleux, Luc ; et alin Proceedings of ECCOMAS 2000/COMPLAS VI, European Congress on Computational Methods in Applied Sciences and Engineering (2000) Detailed reference viewed: 15 (1 ULg)An extension of the Radial Return Scheme for Springback Similation in Sheet Metal Forming; Papeleux, Luc ; et alin 6th ICTP-International Conference on Technology of Plasticity, Nuremberg (1999) Detailed reference viewed: 12 (1 ULg)Springback simulation in sheet metal forming using implicit algorithmsPapeleux, Luc ; ; et alin . NUMISHEET’99, the Fourth International Conference and Workshop on Numerical Simulation of 3D Sheet Forming Processes (1999) Detailed reference viewed: 16 (1 ULg)A unified radial return scheme for visco-plasticity and mixed hardeningPonthot, Jean-Philippe ; Papeleux, Luc ; in Seventh International Symposium on Plasticity and its current applications (1999) Detailed reference viewed: 19 (1 ULg)
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