Experimental and numerical investigation of skin/lattice stiffener debonding growth in composite panels under bending loading

In the present paper, a comparative study on the debonding growth between skin and the lattice stiffeners is performed using both numerical and experimental procedures. To this end, two prevalent types of stiffener arrangement in designing of the lattice composite panels (orthogrid pattern) are considered. Furthermore, the detailed effects of the initial debonding pattern on the mechanical behavior of the structure are investigated. Then, finite...