3539 Fatigue Crack Initiation and Propagation Analysis in the Hull Double Bottom Structural Model with a Corner Bracket by FLARP
Details
Precise prediction of fatigue crack growth is important to maintain the integrity of structures, because many fatigue damages are reported in welded built-up structures. The authors have developed the numerical fatigue crack growth (initiation and propagation) simulation code FLARP (Fatigue Life Assessment by RPG load) and shown its validity for fatigue test specimens and simple welded joints under constant and variable amplitude loadings. In this paper, the numerical fatigue crack growth simulations by FLARP for the structural elements with bracket are reported. The validity of fatigue life estimation by FLARP is confirmed by comparing the estimated S-N curves with the experimental results for the structures.
