Ductile Damage Prediction in Metal Forming Processes:Advanced Modeling and Numerical Simulation
This paper describes the needs required in modern virtual metal forming including both sheet and bulk metal forming of mechanical components.These concern the advanced modeling of thermo-mechanical behavior including the multiphysical phenomena and their interaction or strong coupling,as well as the associated numerical aspects using fully adaptive simulation strategies.First a survey of advanced constitutive equations accounting for the main thermomechanical phenomena as the thermo-elasto-plastic finite strains with isotropic and kinematic hardenings fully coupled with ductile damage will be presented.Only the macroscopic phenomenological approach with state variables (monoscale approach) will be discussed in the general framework of the rational thermodynamics for generalized micromorphic continua.The micro-macro (multi-scales approach) in the framework of polycrystalline inelasticity is not presented here for the sake of shortness but will be presented during the oral presentation.The main numerical aspects related to the resolution of the associated initial and boundary value problem will be outlined.A fully adaptive numerical methodology will be briefly described and some numerical examples will be given in order to show the high predictive capabilities of this adaptive methodology for virtual metal forming simulations.
Large plasticity damage adaptive numerical simulation FEM Virtual metal forming
K.Saanouni
ICD/LASMIS,STMR UMR-CNRS 6279 ,University of Technology of Troyes 12 Rue Marie Curie,CS 42060,10004 Troyes Cedex,France
国际会议
沈阳
英文
30-37
2013-07-06（万方平台首次上网日期，不代表论文的发表时间）