Abstract
In the present analysis, the results of experimental tests for intact and cracked aluminum panel under uniaxial compressive load are presented and compared with numerical results. A model of the intact panel is calibrated through conduction of a series of nonlinear finite element analysis, simulating the experimental test conditions. The input stress-strain curve is based on actual mechanical properties obtained from a tensile test of the material of the panel. The ultimate compressive capacity on the intact panel is compared with existing empirical formulation showing a good agreement. The calibrated model is modified to account for a locked crack and validated based on the results of a pre-tested cracked aluminum panel. In order to account for different crack geometry effects, a series of finite element analyses of cracked aluminum panels are carried out, varying crack length, location, and orientation. Several concluding remarks are stated and the loss in load-carrying capacity estimated based on the developed FEM may support the decision-making regarding the repair of locked cracks in aluminum panels subjected to compressive load.
•The results of experimental tests for intact and cracked aluminum panel under uniaxial compressive load are presented and compared with numerical results.•A model of the intact panel is calibrated and validated through conduction of a series of nonlinear finite element analysis, simulating the experimental test conditions.•The ultimate compressive capacity on the intact panel is compared with existing empirical formulation showing a good agreement.•A series of finite element analyses of cracked aluminum panels are carried out, varying crack length, location, and orientation.