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The crash behaviour of hot stamped components – the effect of tailoring conditions

Abdollahpoor, Amir, Chen, Xiangjun, Pereira, Michael P., Xiao, Namin and Rolfe, Bernard F. 2015, The crash behaviour of hot stamped components – the effect of tailoring conditions, in CHS2 2015 : 5th International Conference on Hot Sheet Metal Forming of High-Performance Steel, Verlag Wissenschaftliche Scripten, Auerbach, Germany, pp. 591-599.

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Title The crash behaviour of hot stamped components – the effect of tailoring conditions
Author(s) Abdollahpoor, Amir
Chen, Xiangjun
Pereira, Michael P.ORCID iD for Pereira, Michael P. orcid.org/0000-0002-7885-5901
Xiao, Namin
Rolfe, Bernard F.ORCID iD for Rolfe, Bernard F. orcid.org/0000-0001-8516-6170
Conference name Hot Sheet CHS2 Metal Forming of High Performance Steel. Conference (5th : 2015 : Toronto, Canada)
Conference location Toronto, Canada
Conference dates 31 May- 3 Jun. 2015
Title of proceedings CHS2 2015 : 5th International Conference on Hot Sheet Metal Forming of High-Performance Steel
Publication date 2015
Start page 591
End page 599
Total pages 9
Publisher Verlag Wissenschaftliche Scripten
Place of publication Auerbach, Germany
Summary It is known that tailoring a hot stamping part, to achieve locally graded properties, can improve the crash behavior. Depending on the role of the structural part (carrying either bending or axial crash load), the best position for the local regions with lower strength and higher ductility can be different. The distribution of these local regions and their mechanical properties affects the crash behavior of the part in each loading case and therefore can be effectively designed to improve the crash performance. To investigate these effects and examine the improvement possibilities, a numerical thermalmechanical-metallurgical model of a hot stamping process and a representative side impact crash model were created and analysed. The hot stamping model was used to predict the consequent phase fractions and mechanical properties of tailored hot stamping parts produced with different tailoring scenarios. In the metallurgical model, a modified phase transformation model based on Scheil’s additive principle was incorporated. The geometry and mesh of the stamped part was exported to a crash numerical model with a 3-point bending configuration. A constitutive model was used to define the plastic behavior of the stamped part corresponding to different hardness values. Various possibilities in locally positioning the high strength or high ductility zones of material were examined. The results show that the positioning of the soft zones has a more significant effect on the crash performance than the variation in their mechanical properties of these soft zones.
Language eng
Field of Research 090202 Automotive Engineering Materials
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category E1 Full written paper - refereed
ERA Research output type E Conference publication
Copyright notice ©2015, Verlag Wissenschaftliche Scripten
Persistent URL http://hdl.handle.net/10536/DRO/DU:30073140

Document type: Conference Paper
Collection: School of Engineering
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