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From version < 10.1 >
edited by Fredrik Lagerström
on 2020/01/28 15:32
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edited by Fredrik Lagerström
on 2020/01/28 15:34
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57 57  [[image:PRE HD 006.png]]
58 58  
59 59  
60 -In example four, the upper part of hollowcore is represented by a semicircle replaced by a polygon with 6 sides. As the top corner of the polygon lies above the given distance c to the hollowcore from top side, the polygon is cut and a new smaller horizontal side inserted.
60 +In **example four**, the upper part of hollowcore is represented by a semicircle replaced by a polygon with 6 sides. As the top corner of the polygon lies above the given distance c to the hollowcore from top side, the polygon is cut and a new smaller horizontal side inserted.
61 61  
62 62  
63 63  The lower part of the hollowcore is likewise represented by a semicircle replaced by a polygon with 6 sides which has been cut. Note that an increase of number of sides in the polygons to 12 would give a nicer graphical picture but a slower calculation while hardly improving the calculation result. See [[Calculation Performace>>doc:PRE-Stress.PRE-Stress User Manual.Performance.WebHome]] for a discussion on how to improve calculation performance.
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PRE-Stress Documentation