Creo Simulate > Reference Links > When a Nonessential Feature Causes Unexpected Model Behavior Changes
When a Nonessential Feature Causes Unexpected Model Behavior Changes
Some features that appear cosmetic can have an effect on the way a part behaves. As a simple example, a round that blends a horizontal and vertical surface performs the cosmetic function of smoothing the join between the surfaces. More importantly, however, a round can help distribute a force load applied to one of the surfaces so the stresses where the two surfaces join become finite and acceptable.
If you suppressed the round, Creo Simulate's analysis of the load would be inaccurate due to the fact that the round was bearing part of the load. Further, the model would now contain a high stress concentration that might distort the results of the analysis.
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