Steel Sheet Forming Isotropic Or Anisotropic

Experimental and numerical investigations on the characterization and prediction of cold formability of two different types of automotive steel sheets a ferritic stainless steel sheet aisi 439 and a dual phase steel sheet dp600 are performed in this study.

Steel sheet forming isotropic or anisotropic.

Technology and machine tools for cold metal forming tpr 2000 cluj napoca romania 11 12. Due to the different microstructure configurations these two steels show significant differences in plasticity behavior as well as. The damage model is coupled with an elasto plastic material model using anisotropic plasticity hill 48 yield criterion and strain rate dependent isotropic hardening. Cedric xiac n xinhai zhud danielle zengc shuhui lia b a shanghai key laboratory of digital manufacture.

Both the isotropic and anisotropic damage models from lemaitre are implemented in an in house implicit finite element code. Plast 26 9 2010 pp. The type of plastic anisotropy usually desired in sheet metal forming is that the sheet is isotropic in the plane and has an increased strength in the thickness direction which is nor. The method calculates the response of a small amount of the blank using crystal plasticity.

Rolled sheets elastic deformation is much smaller compared with the plastic deformation so only the anisotropic plasticity is nor mally considered. Vladimirov in pietryga mp reese s 2010 anisotropic finite elastoplasticity with nonlinear kinematic and isotropic hardening and application to sheet metal forming. The international journal of advanced manufacturing technology vol. Some comments on a new anisotropic yield criterion 7 11 natl.

A non associated anisotropic plasticity model with mixed isotropic kinematic hardening for finite element simulation of incremental sheet metal forming process. 659 687. Hybrid beam in this study consists of a number of layers of anisotropic fiber reinforced polymer frp and a layer of isotropic steel sheet. Vladimirov i n pietryga m p reese s anisotropic finite elastoplasticity with nonlinear kinematic and isotropic hardening and application to sheet metal forming int.

A method of fabricating an article from a blank of material e g aluminum alloy sheet having anisotropic deformation properties with tooling which has been designed by predicting flow and deformation of the blank using an analysis which decouples the anisotropic deformation properties of the blank.