Project 2

AIM:To perform the 2d meshing in the given floor panel component under the given quality criterion.

PROCEDURE:(i)The model which we have got after importing it into hypermesh radioss is shown below:

(ii)Firstly we have got to remove all the solids present if any since it is a 2D plastic model of Floor panel having the varying thicknesses.

(iii)Now we proceed towards the mid surface extraction Geometry>midsurface>auto_midsurface after executing it we have got the midsurface to be get extracted then the we have got the many geometric errors in it which can be fixed manually by deleting the irregular surfaces and recreating it by using filler surface or by using the ruled option in some cases ,sometimes we could be using the spline or line drag or extend to make the surface connected.

(iv)After cleaning out the geometric error we have to toggle those lines failing for the quality criterion along with we have got to fill the holes having dia. less than 5mm or equal to 5mm after executing the following steps the model which is perfectly good to go for the meshing is shown below:

(v)Then we proceed to the meshing part with a quality criterion shown below:

And then we give the automesh and meshing the component continuously until we woulldn't get the result of meshing having low trias with very low quality failure having proper quads mesh flow with no rotating quads.During the time of meshing we can press O or Preferences>meshing options>Mesh we put the option as KEEP MESH rather to use ADVANCED REMESH sometimes because this option wouldn't distort the meshing when someone got realised that defeature has to be done in the surface without changing the mesh qualty can be done by this.The major problem with keep mesh is that it don't connect the nodes of one surface which is connected with each other for that we have to connect them manually,ADVANCED REMESH advantage is that it provide the connection in the mesh of 2 connected surfaces someone need not to do it manually.

(vi)Then for making nodes to nodes connection we can go to tools>edges and give equivalences with different values of tolerance could vary from 0.1 to 1 if then also connection required we can do it manually by using the replace option of F3 after deploying necessary connection with meshing model and assigning the thicknesses and enabling to 2D traditional and detailed element representation model shown as below:

(vi)If doing meshing properly is not capable enough to remove quality issues then we prefer to choose 2D>Quality index and cleanup tools to get rid off most of the quality failures.Image shows below of it:

CONCLUSION:(a)Here we have got to know about the meshing in a plastic component and how to seggregate the mid surface of the same component.Here we have understood about the defeaturing of the lines in order to get good mesh flow and quality also got it about how unnecessary defeaturing distort the model.

(b)A prefabricated unit consisting of flooring, subflooring, and reinforcing joists; supported by columns, walls, or beams is a floor panel.This panel is used to build floors and roofing with concrete joists which has reinforcements, providing significant advantages in terms of lightness, insulation and speed of assembly. These are EPS pre-formed polystyrene foam slab, with suitable steel joists reinforcement and then adding cast-in-place concrete.