Explicit dynamics finite element analyses of asymmetrical roll bending process

In this article, results obtained from a preliminary study that contains set of explicit dynamics finite element analyses metal plate bending process are presented through 3D asymmetrical three roller models. ANSYS Ls-Dyna (ED-FEA) preprocessor and solver were used to carry out dynamic simulations. Explicit low-velocity such as the roll-bending is computationally expensive method. Since plastic deformation occurs on in addition elastic flexure eventually possess circular geometry, material considered non-linear material. particular study, an aluminum was modeled with Bilinear Kinematic Hardening model including plasticity parameters tangent modulus. A very significant parameter called mass scaling factor taken into account be able define specific time-step determine computation time interval total temporal cost. However, exaggerated reduction unphysical consequences. The before after redesigning lower side rolls having convex geometry peripheral velocity upper roll rotation decreased minimize distortion occurred pre-bent walls plate.