Buckling of 120° stiffened composite cylindrical shell under axial compression – Experiment and simulation

Quantifying the sensitivity of plate aspect ratio and edge boundary conditions on CFRP plate impact and post impact residual strength

“…For example, plate boundary conditions have been shown to influence both the bucking load and mode shape [14], with Qiao et al demonstrating that plate buckling load is also proportional to edge rotational restraint resulting from stiffeners of different shapes [15]. Li et al [16] also demonstrated on stiffened cylindrical panels how buckling of the panel skin bays can potentially trigger debonding of adjacent stiffeners, highlighting the importance of understanding how composite plates and bounding stiffener features interact. Methods to predict with good accuracy the buckling of pristine composite panels have been developed to account for different plate geometry or edge boundary conditions [17], and incorporated into composite design and optimisation capabilities to support the structural design [18].…”