Open AccessSimulation for analysis and control of superplastic forming. Final report
Author(s) -
Tom Zacharia,
G.A. Aramayo,
Srđan Šimunović,
Gerard M. Ludtka,
Mohammad A. Khaleel,
Kenneth I. Johnson,
Mark T. Smith,
G.L. Van Arsdale,
Curt A. Lavender
Publication year - 1996
Language(s) - English
Resource type - Reports
DOI - 10.2172/419270
Subject(s) - oak ridge national laboratory , benchmark (surveying) , superplasticity , ridge , nuclear engineering , computer science , simulation , mechanical engineering , engineering , materials science , nuclear physics , physics , geology , alloy , paleontology , geodesy , composite material
A joint study was conducted by Oak Ridge National Laboratory (ORNL) and the Pacific Northwest Laboratory (PNL) for the U.S. Department of Energy-Lightweight Materials (DOE-LWM) Program. the purpose of the study was to assess and benchmark the current modeling capabilities with respect to accuracy of predictions and simulation time. Two modeling capabilities with respect to accuracy of predictions and simulation time. Two simulation platforms were considered in this study, which included the LS-DYNA3D code installed on ORNL`s high- performance computers and the finite element code MARC used at PNL. both ORNL and PNL performed superplastic forming (SPF) analysis on a standard butter-tray geometry, which was defined by PNL, to better understand the capabilities of the respective models. The specific geometry was selected and formed at PNL, and the experimental results, such as forming time and thickness at specific locations, were provided for comparisons with numerical predictions. Furthermore, comparisons between the ORNL simulation results, using elasto-plastic analysis, and PNL`s results, using rigid-plastic flow analysis, were performed