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ASME Code - Toelaatbare Spanningen
  • Section II, Table 1A - Toel. spanningen
  • Section II, Table 1B - Toel. spanningen
  • Section II, Table 3 - Toel. spanningen
  • Toelaatbare spanningen koolstofstaal
  • Toelaatbare spanningen hooggelegeerd staal
Mantels en Bodems
  • Mantel onder inwendige druk
  • Elliptische bodem onder inwendige druk
  • Torisferische bodem onder inwendige druk
  • Klopperbodem (DIN28011) onder inwendige druk
  • Korfboogbodem (DIN28013) onder inwendige druk
  • Hemisferische bodem onder inwendige druk
  • Vlakke (cilindrische) bodem onder inwendige druk
  • Vlakke (niet-cilindrische) bodem onder inwendige druk
Flenzen
  • Equivalente flens druk bij externe belasting
  • Losse flens onder inwendige druk
  • ASME B16.5 flenzen
Bepalen van Vormspanningen
  • Vormingsspanning van een mantel
  • Vormingsspanning van een bodem
  • Vormingsspanning van buis of gebogen pijp


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Essen, Duitsland
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December 2019

Brussel, Belgium
(Engels)
 

Korfboogbodem (DIN28013) - ASME Code Sectie VIII, Divisie 1

 
 

inwendige druk P:

bar CIS ASME TÜV Thüringen Group
mm

minimale wanddikte tmin:

mm

toelaatbare spanning S:

N/mm2

Lasfactor E:

-

Tussenresultaat

Resultaat

  I [App.1-4(3)] II [App.1-4(3)]    
Online Rechner ASME Code Online Rechner ASME Code    

nodige wanddikte treq:

   

ontwerp marge:

   

Invoerfout

 
 

Notes

A Korbbogenboden according to DIN 28013 has a crown radius of 0,8 and a knuckle radius of 0,154 x D0 of its cylindrical skirt. Against the background of the tolerances listed in Section VIII, Division 1, UG-81(a), a 2:1 elliptical head would meet both these requirements and is thus sometimes considered as equivalent. However, as the design formulas for these two types of heads are different, they also result in different required thicknesses. The required thickness of a Korbbogenboden according to ASME Code is slightly greater than that of a 2:1 elliptical head. Is the head specified as “Korbbogenboden”, using the wrong formula would therefore lead to a smaller than required wall thickness.

When performing a UG-37 reinforcement calculation for a nozzle which is completely located in the crown (incl. its reinforcement area), the “Korbbogenboden” is more favourable. The reason being that for reinforcement calculations the crown of a 2:1 elliptical head is determined with 0,9 D0 instead of 0,8 D0. Thus there is less reinforcement area available for the compensation of the opening.

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ASME Section VIII Division 1
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