BS 7608 Fatigue (2014)

BS 7608:2014 + A1:2015 - Guide to fatigue design and assessment of steel products.

To add the standard execute Standards - Main - Other - BS 7608 Fatigue (2014) from the ribbon:

Press to Set Standard Custom Settings

Standard uses material data (Yield/Tensile) in calculations. Wizard checks if the values are defined for all materials.

By default Environment (Clause 1.5) characteristic for full model is set to air environment. Press to edit Environment type.

SN Curve is directional classification. X - direction is parallel to the weld, Y - perpendicular. First set non-welded curve for full model. Second step is to define SN curve for welds (parallel and perpendicular). For welds intersection (last step) the lowest class between X, Y should be set. Clause 12.2, Classification of details based on Tables 1 to 10;

Reduced range - When the resultant stress range involves stress reversals through zero, the effective stress range to be used in the fatigue assessment should be obtained by adding 60% of the range from zero stress to maximum compressive stress of that part of the range from zero stress to maximum tensile stress. Clause 15.4 and 16.3.6;

Is Butt Weld - select elements defined as butt welds. Used in calculations of thickness factor (formulas 6 and 7). Clause 16.3.2;

Use Hot Spot Stress - use Hot Spot Stress results for locations defined in Weld Finder Tool or Weld Stress results in the fatigue checks.