In present work has been made investigation of delamination between skin of shell and flanges of a stiffener by experimental testing and numerical analysis. Energy release rate has been evaluated from experimental testing under Mode I and Mode II loading conditions. The investigation has been made with aim to find the parameters for prediction a crack growing under different kind of stiffened shell loading. The numerical analysis of the structure with has been made using computer code ANSYS/LS-DYNA for explicit analysis of delamination. The energy release rate has been calculated in the damaged zones using Virtual Crack Closure Integral method  and so-called Tehnique-B. A crack front of delamination has been investigated since this one has considerable influence on energy release rate in the composites. A crack front isn’t a straight line and depends as from stiffness of the web flanges, as from directions of layers stacking at the delaminated surfaces
To submit an update or takedown request for this paper, please submit an Update/Correction/Removal Request.