LOCAL BUCKLING OF CRACKED AND PIN-LOADED PLATES

The interaction between buckling and fracture may affect crack growth in thin riveted aircraft fuselage structures, Buckling may also compli cate and induce the phenomenon of multisite damage in aircraft fuselag es, This buckling-fracture phenomenon in thin-walled structures is stu died through an idealized model, a cracked and pin-loaded hole in a pl ate, Despite this simplification, a better understanding of the mechan isms of fatigue and fracture in thin-walled structures is obtained by a finite element model and an experiment, using holospeckle interferom etry. The experimental studies show an interesting phenomenon, the pre sence of a combination of tearing mode III as well as opening mode I f racture mechanisms at the cracks in the pin-loaded plates after local buckling,This phenomenon is discussed, and further research is foresha dowed.