Simulation On The Texture Evolution Of Oriented Silicon Steel During Cold Rolling By FEM Associated With Crystal Plasticity Model

The crystal plasticity model was introduced and implemented in the finite element software to explore the evolution law of oriented silicon steel during cold rolling,which aimed at researching the plastic deformation behavior of oriented silicon steel at mesoscale level and provided some guidance for the prediction and optimization of texture evolution of oriented silicon steel during cold rolling.The details are as follows.(2)A compressive test was conducted and the stress-strain curve was measured.The compression process was also simulated by FE software and the result of the stress-strain curve was compared with that of experiment,which verified the validity of UMAT.The simulation result shows that the rotation angle around TD is bigger than that around RD and ND,and that deformation zones parallel to the direction of RD was formed during the compression deformation process.(3)A cold rolling model was established according to the two-high rolling mill in the school laboratory.The result shows as follows.The difference of initial orientation of grains can lead to the nonuniformity of deformation during plastic deformation.The rotation angle around TD is larger than that around RD and ND.The grains of polycrystal rotate in different ways and generate deformation bands with different shapes because of the effect of the adjacent grains.The rotation angle around TD of the grains with initial orientations of {110} is larger than that of the grains with other initial orientations,as shown in the pole figures.With the increase of strain,the rotation angle around each direction has increased.Especially,the grains with initial orientations of {110} behaved more obviously.