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The split line concepts for mesh control will be illustrated via the first tutorial “Static Analysis of a Part”, using the example file Tutor1.sldprt which is shown in Figure 1. (Remember to save it with a new name.) Consider that tutorial to be a preliminary analysis. You should recall that there was bending of the base plate near the loaded vertical post. However, the original solid mesh had only one element through the thickness in that region and would therefore underestimate the bending stresses there. You need to control the mesh there to form 5 to 6 layers to accurately capture the change in bending stress through the thickness. Begin by reconsidering the restraints utilized. In many problems the restraints are unclear or questionable and you need to consider other restraint cases. You previously restrained all the three translations on the two small cylindrical surfaces. That makes those surfaces
perfectly rigid. That would be almost impossible to build. It is likely that the holes were intended to be bolt holes. Splitting a Surface or Curve : 1. Select the top surface of the base by moving the cursor over it until its boundary turns green and Insert Sketch.
2. Pick the Sketch icon and pick the Circle option so we can form a bolt head washer area. To form a vertical bearing region on the bolt hole sidewall: 1. Select the top surface and use Sketch ???? Line. “Wake up” the center point again. Use it to draw a straight line forward from the center that crosses the circle.
Tags:cylindrical surfaces, bolt holes, sldprt, vertical post, bolt head
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