Week - 5 - 2D meshing for Plastic components

OBJECTIVE

1. To create Mid-surface and
2. To mesh with the given element Quality Criteria for the given Symmetry Bottle Cap.

PROCEDURE

1. Open the given Symmetry Bottle Cap in ANSA by using File > Open

Symmetry Bottle Cap

2 After that Go to Tool >Checks >Geometry for Cleanup.

3 As shown in screenshot, Checks Manager window click Execute to check any error occurred in Symmetry Bottle Cap and fix the Error and Cleanup the Geometry.

Cleanup the Geometry

7. After that Click Execute in the Checks Manager and 100% Geometry Cleanup is now get.

CREATING MID-SURFACE:

1. After geometry Cleanup and Mid-surface has to be created for Symmetry Bottle Cap.

2 initially to Measure thickness of the Component for Creating Mid-Surface. Go to Utilities > Measure Option

3. In the below the window, Click two nodes or cons to measure the thickness of the Component and Store the Measurement.

4. By using Faces > offsets after that click on featured area and then select face.

5. Select the Face and enter the Offset Value to create a Mid-Surface for the Component.

6. After entering the Offset Value and click Ok and Mid-surface will be created

Symmetry Bottle Cap Mid-Surface

7. After creating a Mid-Surface, Click Faces > Set PID option and create New PID for Mid-surface in the properties.

MESHING:

1. For meshing Mid-Surface, set the given mesh Quality Criteria for the Component.

3. For that follow Go Utilities >Quality Criteria Option and assign the given Quality Criteria Values.

Quality Criteria

4. After assigning the Quality Criteria for the Component, Go to Utilities >Mesh Parameters and assign the Average Value for Meshing.

Mesh Parameters

5. Go to Mesh >Perimeters > Length Option and Select the whole good model to Mesh and enter the Value of Perimeter 1mm Length for Meshing.

7. After that go to Mesh >Mesh Generation Option and Select the best Mesh type to mesh the whole Component Part.

8. Use Shell Mesh-->Reconstruct option to rearrange the Mesh and Use Shell Mesh >Smooth Option to refine Mesh lines equally within the Selected Surface and solving the Quality criteria issues.

Reconstruct mesh

Smooth Mesh

9. Use Grids-->Paste and Elements >Split / Swap / Joint Option to eliminate or reduce the trias and get better mesh flow.

10. 

Quality criteria failure

Symmetry Bottle Cap Mesh