Lasberekening dynamisch belast, Eurocode 3 prEN 1993-1-9
Vermoeiingsgrens bij constante amplitude, afsnijgrens, hellingsexponent van de S-N-curve en vermoeiingslevensduur van een dynamisch belast lasdetail, op basis van de Eurocode 3 lasdetailcategorie (FAT-klasse) en de opgelegde spanningswijdte.
For ΔσR below the cut-off limit ΔσL, the legacy source never assigns m/NR before referencing them (a coding bug) and would throw an uncaught ReferenceError in a real browser session, so the "infinite life" branch never actually reports anything there. This port returns NaN for m/NR in that regime rather than "infin", and is tested only for ΔσR >= ΔσL, matching what the original can actually execute without crashing.
Methode & referenties
- Eurocode 3: Design of steel structures, Part 1-9: Fatigue, prEN 1993-1-9:2003 — two-slope S-N curve for weld details.
- The legacy page this was ported from shares its exact page title with the adhesive lap-joint shear-stress calculator, but the two are genuinely distinct models — see that calculator if you were looking for an adhesive-bond calculation instead of a weld fatigue-life calculation.
De berekening is een letterlijke overzetting van de originele client-side JavaScript van /calculators/c3_7.htm. Resultaten zijn geverifieerd gelijk aan het origineel via een geautomatiseerde golden-master-test. Geen enkele formule is opnieuw afgeleid of “verbeterd”.