FML full scale aeronautic panel under multiaxial fatigue: Experimental test and DBEM Simulation

摘要: Abstract This paper concerns the numerical and experimental characterization of static fatigue strength a flat stiffened panel, designed as Fibre Metal Laminate (FML) made aluminium alloy Glass FRP. The panel is full scale was tested under both bi-axial loads, applied by means an in house built multiaxial machine. strain gauge outcomes from preliminary test are compared with corresponding results, getting satisfactory correlation. A crack propagation FML simulated two dimensional original approach based on Dual Boundary Element Method (DBEM). To overcome lack information size delamination area “inverse” procedure applied: introduced DBEM model calibrated such way to minimise growth rate differences. aims at providing general purpose evaluation tool for better understanding resistance panels, deeper insight into role fibre stiffness extension Stress Intensity Factors. realized context European research project (DIALFAST).