WitrynaDefense Technical Information Center Witryna15 lis 2015 · Medina et al. [6] concluded that the mechanical behaviour of composites is not affected by the weave structure unless the weaving pattern involves only orthogonal fibers. Yang et al. [7] studied ...

Development of a prediction model using fully connected

WitrynaThis report documents new analytical methods for the solution of soft-body impact problems, including birdstrike. The approach is based on explicit finite element techniques which allow for very detailed material modeling and make efficient use of the current generation of supercomputers. The most important improvements in the … Witryna14 sie 2024 · However for soft impact, the study is only restricted to high velocity impacts since the low strength and stiffness of the material cannot affect importantly if the impact is at low velocity. The study of high velocity impact takes on particular importance in the aeronautic sector, and moreover, the impact of soft projectiles is … ready mix concrete in east london

Low- and high-fidelity modeling of sandwich-structured …

WitrynaAn unsteady, hydrodynamic model of the impact of a low strength projectile on a rigid or semi-rigid target has been developed. Impact tests of various materials including … Witryna11 paź 2011 · An experimental and numerical analysis of the response of laminated composite plates under high-velocity impact loads of soft body gelatine projectiles (artificial birds) is presented. The plates are exposed to tensile and compressive preloads before impact in order to cover realistic loading conditions of representative … Witryna1 cze 2015 · The effect of ply angles (0°/90°, 45°/−45°, and 0°/45°/90°/−45°) on the low-velocity impact damage of the C/SiC composites was investigated externally and internally. Different depths of pits were formed in the impacted side with fibers sheared off, whereas fiber bundles breakage and matrix cracking appeared on the back side. ready mix concrete jackson mo