DSpace DSpace UPC
 Català   Castellano   English  

E-prints UPC >
Altres >
Enviament des de DRAC >

Empreu aquest identificador per citar o enllaçar aquest ítem: http://hdl.handle.net/2117/12430

Arxiu Descripció MidaFormat
Benito_cobo0046.pdf299,42 kBAdobe PDFThumbnail
Veure/Obrir

Citació: Cobo, R. [et al.]. Analysis of the decrease of the apparent young's modulus of advanced high strength steels and its effect in bending simulations. A: International Deep Drawing Research Group. "IDDRG 2009 International Conference". Golden: 2009, p. 109-117.
Títol: Analysis of the decrease of the apparent young's modulus of advanced high strength steels and its effect in bending simulations
Autor: Cobo Molina, Raúl Veure Producció científica UPC; Pla, M.; Hernández Rossi, Ricardo Veure Producció científica UPC; Benito Páramo, José Antonio Veure Producció científica UPC
Data: 2009
Tipus de document: Conference lecture
Resum: In this paper the evolution of the Young’s Modulus (E) during unloading with plastic deformation has been studied for different Dual-Phase AHSS from DP780 to DP1400. During unloading, all the DP steels studied showed the presence of microplasticity so an Apparent Young’s Modulus (EA) has been defined. Although that in all cases EA decreased with a non-linear behavior as the plastic strain was increased, it has been observed that the final percentage of decrease seems to be related to the microstructure of DP steels. As the ferrite content increased as in the lower strength DP steels, the reduction of EA is larger, reaching a 21%. The introduction of the variation of the elastic response during unloading in the simulation of a bending operation has allowed obtaining an improvement of the accuracy in springback prediction in all the DP steels studied. For the low strength DP steels the final shape obtained by simulation is in fact the same than the real one. As the strength of steel is increased, the accuracy is less, especially in the DP 1400 steel, in which differences in bending angle higher than a 15% are still found.
URI: http://hdl.handle.net/2117/12430
Apareix a les col·leccions:Altres. Enviament des de DRAC
PROCOMAME - Processos de Conformació de Materials Metàl·lics. Ponències/Comunicacions de congressos
Departament de Ciència dels Materials i Enginyeria Metal·lúrgica. Ponències/Comunicacions de congressos
Departament de Màquines i Motors Tèrmics. Ponències/Comunicacions de congressos
Comparteix:


Stats Mostra les estadístiques d'aquest ítem

SFX Query

Aquest ítem (excepte textos i imatges no creats per l'autor) està subjecte a una llicència de Creative Commons Llicència Creative Commons
Creative Commons

 

Valid XHTML 1.0! Programari DSpace Copyright © 2002-2004 MIT and Hewlett-Packard Comentaris
Universitat Politècnica de Catalunya. Servei de Biblioteques, Publicacions i Arxius