FE calculations on a three stage metal forming process of Sandvik Nanoflextm

R.M.J. Voncken; O. van der Sluis; J. Post; J. Huetink

doi:10.1063/1.1766569

FE calculations on a three stage metal forming process of Sandvik Nanoflex^tm

R.M.J. Voncken, O. van der Sluis, J. Post, J. Huetink

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

Abstract

Sandvik Nanoflex™ combines good corrosion resistance with high strength. This steel has good deformability in austenitic conditions. It belongs to the group of metastable austenites, which means that during deformation a strain‐induced transformation into martensite takes place. After deformation, transformation continues as a result of internal stresses. Both transformations are stress‐state and temperature dependent. A constitutive model for this steel has been formulated, based on the macroscopic material behaviour measured by inductive measurements. Both the stress‐assisted and the strain‐induced transformation into martensite have been incorporated in this model. Path‐dependent work hardening has also been taken into account. This article describes how the model is implemented in an internal Philips FE code called Crystal, which is a dedicated robust and accurate finite element solver. The implementation is based on lookup tables in combination with feed‐forward neural networks. The radial return method is used to determine the material state during and after plastic flow, however, it has been extended to cope with the stiff character of the partial differential equation that describes the transformation behaviour.

Original language	English
Title of host publication	Materials processing and design : modeling, simulation and applications
Subtitle of host publication	NUMIFORM 2004 : proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes
Editors	Somnath Chosh, Jose M. Castro, June K. Lee
Place of Publication	Melville, NY
Publisher	American Institute of Physics
Pages	469-474
ISBN (Electronic)	0-7354-0189-6
ISBN (Print)	0-7354-0188-8
DOIs	https://doi.org/10.1063/1.1766569
Publication status	Published - 13 Jun 2004
Event	8th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2004 - Columbus, United States Duration: 13 Jun 2004 → 17 Jun 2004 Conference number: 8

Conference

Conference	8th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2004
Abbreviated title	NUMIFORM
Country/Territory	United States
City	Columbus
Period	13/06/04 → 17/06/04

Keywords

METIS-256016

Access to Document

10.1063/1.1766569

Cite this

Voncken, R. M. J., van der Sluis, O., Post, J., & Huetink, J. (2004). FE calculations on a three stage metal forming process of Sandvik Nanoflex^tm. In S. Chosh, J. M. Castro, & J. K. Lee (Eds.), Materials processing and design : modeling, simulation and applications: NUMIFORM 2004 : proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes (pp. 469-474). American Institute of Physics. https://doi.org/10.1063/1.1766569

Voncken, R.M.J. ; van der Sluis, O. ; Post, J. et al. / FE calculations on a three stage metal forming process of Sandvik Nanoflex^tm. Materials processing and design : modeling, simulation and applications: NUMIFORM 2004 : proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes. editor / Somnath Chosh ; Jose M. Castro ; June K. Lee. Melville, NY : American Institute of Physics, 2004. pp. 469-474

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abstract = "Sandvik Nanoflex{\texttrademark} combines good corrosion resistance with high strength. This steel has good deformability in austenitic conditions. It belongs to the group of metastable austenites, which means that during deformation a strain‐induced transformation into martensite takes place. After deformation, transformation continues as a result of internal stresses. Both transformations are stress‐state and temperature dependent. A constitutive model for this steel has been formulated, based on the macroscopic material behaviour measured by inductive measurements. Both the stress‐assisted and the strain‐induced transformation into martensite have been incorporated in this model. Path‐dependent work hardening has also been taken into account. This article describes how the model is implemented in an internal Philips FE code called Crystal, which is a dedicated robust and accurate finite element solver. The implementation is based on lookup tables in combination with feed‐forward neural networks. The radial return method is used to determine the material state during and after plastic flow, however, it has been extended to cope with the stiff character of the partial differential equation that describes the transformation behaviour.",

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Voncken, RMJ, van der Sluis, O, Post, J & Huetink, J 2004, FE calculations on a three stage metal forming process of Sandvik Nanoflex^tm. in S Chosh, JM Castro & JK Lee (eds), Materials processing and design : modeling, simulation and applications: NUMIFORM 2004 : proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes. American Institute of Physics, Melville, NY, pp. 469-474, 8th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2004, Columbus, Ohio, United States, 13/06/04. https://doi.org/10.1063/1.1766569

FE calculations on a three stage metal forming process of Sandvik Nanoflex^tm. / Voncken, R.M.J.; van der Sluis, O.; Post, J. et al.
Materials processing and design : modeling, simulation and applications: NUMIFORM 2004 : proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes. ed. / Somnath Chosh; Jose M. Castro; June K. Lee. Melville, NY: American Institute of Physics, 2004. p. 469-474.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › Academic › peer-review

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AU - van der Sluis, O.

AU - Post, J.

AU - Huetink, J.

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Y1 - 2004/6/13

N2 - Sandvik Nanoflex™ combines good corrosion resistance with high strength. This steel has good deformability in austenitic conditions. It belongs to the group of metastable austenites, which means that during deformation a strain‐induced transformation into martensite takes place. After deformation, transformation continues as a result of internal stresses. Both transformations are stress‐state and temperature dependent. A constitutive model for this steel has been formulated, based on the macroscopic material behaviour measured by inductive measurements. Both the stress‐assisted and the strain‐induced transformation into martensite have been incorporated in this model. Path‐dependent work hardening has also been taken into account. This article describes how the model is implemented in an internal Philips FE code called Crystal, which is a dedicated robust and accurate finite element solver. The implementation is based on lookup tables in combination with feed‐forward neural networks. The radial return method is used to determine the material state during and after plastic flow, however, it has been extended to cope with the stiff character of the partial differential equation that describes the transformation behaviour.

AB - Sandvik Nanoflex™ combines good corrosion resistance with high strength. This steel has good deformability in austenitic conditions. It belongs to the group of metastable austenites, which means that during deformation a strain‐induced transformation into martensite takes place. After deformation, transformation continues as a result of internal stresses. Both transformations are stress‐state and temperature dependent. A constitutive model for this steel has been formulated, based on the macroscopic material behaviour measured by inductive measurements. Both the stress‐assisted and the strain‐induced transformation into martensite have been incorporated in this model. Path‐dependent work hardening has also been taken into account. This article describes how the model is implemented in an internal Philips FE code called Crystal, which is a dedicated robust and accurate finite element solver. The implementation is based on lookup tables in combination with feed‐forward neural networks. The radial return method is used to determine the material state during and after plastic flow, however, it has been extended to cope with the stiff character of the partial differential equation that describes the transformation behaviour.

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M3 - Conference contribution

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BT - Materials processing and design : modeling, simulation and applications

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A2 - Castro, Jose M.

A2 - Lee, June K.

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T2 - 8th International Conference on Numerical Methods in Industrial Forming Processes, NUMIFORM 2004

Y2 - 13 June 2004 through 17 June 2004

ER -

Voncken RMJ, van der Sluis O, Post J, Huetink J. FE calculations on a three stage metal forming process of Sandvik Nanoflex^tm. In Chosh S, Castro JM, Lee JK, editors, Materials processing and design : modeling, simulation and applications: NUMIFORM 2004 : proceedings of the 8th International Conference on Numerical Methods in Industrial Forming Processes. Melville, NY: American Institute of Physics. 2004. p. 469-474 doi: 10.1063/1.1766569