In this tutorial, the numerical investigation of rigid impact on a steel-wire-reinforced foam-core composite-skin sandwich panel is carried out in Abaqus. The rigid projectile is modeled as a three-dimensional shell, the steel reinforcements as wire elements, the glass-epoxy skin as a six-layer 3D shell, and the metal foam core as a 3D solid. Glass-fiber-reinforced sandwich composites are widely used in aerospace, automotive, biomedical, marine, and transportation industries due to their high strength- and stiffness-to-weight ratios, corrosion resistance, and low thermal and acoustic conductivity. Studying low- and high-energy impact damage is critical for their design, especially in sandwich structures. To capture composite degradation, Hashin’s theory is applied to the glass-epoxy part, modeling four damage initiation modes: fiber tension, fiber compression, matrix tension, and matrix compression. For steel reinforcements, an elastic–plastic model with a damage criterion is used, applying the Johnson Cook model for high strain-rate behavior. The metal foam is modeled with elastic properties and a crushable foam damage model to account for compression and failure. The analysis uses Abaqus Dynamic/Explicit for both low- and high-velocity impacts, which ensures stable convergence and allows for element deletion upon failure. General contact with defined interaction properties is applied, boundary conditions are set for the panel, and an initial velocity is assigned to the rigid projectile. A fine mesh is used for accurate results. After the simulation, outputs such as stress, strain, damage, and failure are available for evaluation.
Acoustics
€177,99 €149,99
See more
Want to receive push notifications for all major on-site activities?