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FAQ 004567 | How can I model a surface as a quarter circle with variable thickness from the inside to the outside?

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Figure 01 - Quarter circular ring with segmentation

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28 July 2020

004567

Bastian Ackermann

Modeling | Structure

RFEM

Structural Analysis

How can I model a surface as a quarter circle with variable thickness from the inside to the outside?

Answer

For surfaces with variable thickness, a plane consists of three nodes. The result is a wedge, not a cone as desired. Therefore, it is recommended in this case to divide the quarter-circle ring into separate uniform surface segments:

  • Divide the line of the inner arc by means of n intermediate nodes
  • Divide the line of the outer arc by means of n intermediate nodes
  • insert individual lines, delete original surface and redefine individual surface segments

or

  • insert individual lines, divide original surface using integrated lines
  • Define variable thickness as desired for each individual segment

Keywords

Variable thickness Quarter circular ring

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