ESDU 93030:
Three dimensional stress concentration factors. Plain or countersunk hole in a wide plate subjected to tension, bending or pin loading.
Input
  • Tension example
  • Bending example
  • Pin loading example
  • Set as mm
  • Set as in
Summary

This app evaluates the stress concentration factors along the bore of a plain or countersunk hole in a wide plate subjected to tension, out-of-plane bending or pin loading. The data on which the program is based are derived from a three dimensional analysis of the stress distribution around the hole.

ESDU 93030 should be consulted for full descriptions of the parameters, the method and its derivation.

Notes

For 'Bending' and 'Tension' loading cases, both countersunk and plain holes are permitted. Note that for countersunk holes $\theta_c$ is fixed at 100 deg.

For a 'Pin' loading case only plain holes are permitted.

General
Loading
Hole Geometry
Results : Warning - the input has changed! Rerun the calculation contain errors or warnings
Save results as

Stress Concentration Factor Calculation

$K$ calculation

Key:

Hole details:

$K$ definition:

Symbol Units Description
{{ccol.units}}
Maximum
{{occ.utils.valPrintFixed(ccol, 4, "not valid")}}
Minimum
{{occ.utils.valPrintFixed(ccol, 4, "not valid")}}

Variation of $K$ with $z/t$

Tabular data
Data:
{{occ.utils.valPrintFixed(ccol, 4, "not valid")}}
DEBUG
tba: 
{{tba | json}}

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