An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation
In this paper an alternative approach for generating Forming Limit Curve (FLC) of a Dual-Phase (DP800) steel is presented and validated. Investigation was performed using a rate-dependent crystal plasticity (CP) framework solved through a spectral solver and combined subsequently with the Marciniak-...
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EDP Sciences
2025-01-01
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| Series: | MATEC Web of Conferences |
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| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02039.pdf |
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| author | Venkata Kiranmayi Abburi Uppaluri Rohith Pilthammar Johan Gutkin Renaud |
| author_facet | Venkata Kiranmayi Abburi Uppaluri Rohith Pilthammar Johan Gutkin Renaud |
| author_sort | Venkata Kiranmayi Abburi |
| collection | DOAJ |
| description | In this paper an alternative approach for generating Forming Limit Curve (FLC) of a Dual-Phase (DP800) steel is presented and validated. Investigation was performed using a rate-dependent crystal plasticity (CP) framework solved through a spectral solver and combined subsequently with the Marciniak-Kuczynski (M-K) approach for the evaluation of FLC using the commercial software Digimat. Representative Volume Element (RVE) was constructed using the built-in Voronoi tessellation method within Digimat from the Electron Back Scattering Diffraction (EBSD) measurements on the material. The hardening parameters were calibrated through inverse optimisation to match the experimental uniaxial tensile behaviour of the material. The calibrated model was then used as a virtual testing tool to predict the anisotropic yield behaviour of the DP800 steel and the Yld2000 function was fitted to the predicted anisotropic yield surface. The fitted Yld2000 function was then used to determine the FLC using the M-K approach implemented in Digimat where the sheet necking is modelled through an initial imperfection as a narrow band with reduced thickness. The whole workflow was successfully validated with experimental evaluation of FLC. The results are satisfactory and demonstrate the suitability of the presented workflow for FLC evaluation of advanced steels. |
| format | Article |
| id | doaj-art-a342cd0f784b4120ab8da2e3c94e335e |
| institution | Kabale University |
| issn | 2261-236X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj-art-a342cd0f784b4120ab8da2e3c94e335e2025-08-20T03:53:51ZengEDP SciencesMATEC Web of Conferences2261-236X2025-01-014080203910.1051/matecconf/202540802039matecconf_iddrg2025_02039An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with ValidationVenkata Kiranmayi Abburi0Uppaluri Rohith1Pilthammar Johan2Gutkin Renaud3Hexagon Manufacturing IntelligenceHexagon Manufacturing IntelligenceVolvo Cars, Department 81153 Concept EngineeringVolvo Car CorporationIn this paper an alternative approach for generating Forming Limit Curve (FLC) of a Dual-Phase (DP800) steel is presented and validated. Investigation was performed using a rate-dependent crystal plasticity (CP) framework solved through a spectral solver and combined subsequently with the Marciniak-Kuczynski (M-K) approach for the evaluation of FLC using the commercial software Digimat. Representative Volume Element (RVE) was constructed using the built-in Voronoi tessellation method within Digimat from the Electron Back Scattering Diffraction (EBSD) measurements on the material. The hardening parameters were calibrated through inverse optimisation to match the experimental uniaxial tensile behaviour of the material. The calibrated model was then used as a virtual testing tool to predict the anisotropic yield behaviour of the DP800 steel and the Yld2000 function was fitted to the predicted anisotropic yield surface. The fitted Yld2000 function was then used to determine the FLC using the M-K approach implemented in Digimat where the sheet necking is modelled through an initial imperfection as a narrow band with reduced thickness. The whole workflow was successfully validated with experimental evaluation of FLC. The results are satisfactory and demonstrate the suitability of the presented workflow for FLC evaluation of advanced steels.https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02039.pdfdp800forming limit curvecrystal plasticityyld2000 |
| spellingShingle | Venkata Kiranmayi Abburi Uppaluri Rohith Pilthammar Johan Gutkin Renaud An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation MATEC Web of Conferences dp800 forming limit curve crystal plasticity yld2000 |
| title | An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation |
| title_full | An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation |
| title_fullStr | An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation |
| title_full_unstemmed | An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation |
| title_short | An Application of Crystal Plasticity to predict Forming Limit Curve of Dual-Phase Steels with Validation |
| title_sort | application of crystal plasticity to predict forming limit curve of dual phase steels with validation |
| topic | dp800 forming limit curve crystal plasticity yld2000 |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_02039.pdf |
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