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...

four explicit finite difference schemes, including lax-friedrichs, nessyahu-tadmor, lax-wendroff and lax-wendroff with a nonlinear filter are applied to solve water hammer equations. the schemes solve the equations in a reservoir-pipe-valve with an instantaneous and gradual closure of the valve boundary. the computational results are compared with those of the method of characteristics (moc), a...

Unfitted (also known as embedded or immersed) finite element approximations of partial differential equations are very attractive because they have much lower geometrical requirements than standard body-fitted formulations. These schemes do not require unstructured mesh generation. In turn, the numerical integration becomes more involved, one has to compute integrals on portions cells (only int...

We initiate the study of enumerating linear subspaces alternating matrices over finite fields with explicit coordinates. present q-analogues Gilbert's formula for connected graphs (Gilbert (1956) [5]), and Read's c-coloured (Read (1960) [14]). also develop an analogue Riddell's relating exponential generating function that (Riddell's (1951) [15]), building on Eulerian functions developed by Sri...