Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Home 
 People 
 Current 
 Affiliates 
 Visitors 
 Students 
 Research 
 ICAM-LANL 
 Publications 
 Conferences 
 Workshops 
 Sponsorship 
 Talks 
 Colloquia 
 Colloquia Archive 
 Seminars 
 Postdoc Seminars Archive 
 Quantum Lunch 
 Quantum Lunch Archive 
 CMS Colloquia 
 Q-Mat Seminars 
 Q-Mat Seminars Archive 
 P/T Colloquia 
 Archive 
 Kac Lectures 
 Kac Fellows 
 Dist. Quant. Lecture 
 Ulam Scholar 
 Colloquia 
 
 Jobs 
 Postdocs 
 CNLS Fellowship Application 
 Students 
 Student Program 
 Visitors 
 Description 
 Past Visitors 
 Services 
 General 
 
 History of CNLS 
 
 Maps, Directions 
 CNLS Office 
 T-Division 
 LANL 
 
Wednesday, September 30, 2015
10:30 AM - 11:30 AM
CNLS Conference Room (TA-3, Bldg 1690)

Seminar

Modeling the mesoscopic and macroscopic deformation behavior of a deep drawing DC04 steel

Van Tung Phan
National University of Singapore

Metal forming processes such as bulge and stretch forming as well as deep drawing are required for the manufacturing of automotive parts and steel sheet panels. In this contribution, a non-alloyed steel (DC04) is investigated numerically on the meso and the macro scale. In a first step, macro tensile tests are used to estimate the material parameters using large strain single crystal and polycrystal plasticity models. Two-dimensional electron backscatter diffraction (EBSD) data are discretized by finite elements and subjected to homogeneous displacement boundary conditions for grain scale simulations in the second step. In the third step, a two-scale Taylor type model is applied at the integration points of the finite elements to simulate a deep drawing process based on the experimental crystallographic texture data. The texture data required for the specification of the two-scale polycrystal model are determined by using two methodically different methods. Finally, a formability prediction based on the aforementioned two-scale model is analyzed by applying two classical localization criteria for different strain paths.

Host: DJ Lusher