Impact perforation behavior of CFRPs using high-velocity steel sphere
作者： Keisuke Fujii , Motokazu Aoki , Noriyuki Kiuchi , Eiichi Yasuda , Yasuhiro Tanabe
DOI: 10.1016/S0734-743X(01)00152-X
关键词: Energy absorption 、 Materials science 、 Composite material 、 SPHERES 、 Fracture mechanics 、 Dissipation 、 High velocity 、 Ultimate tensile strength 、 Extrusion 、 Failure mode and effects analysis
摘要: Abstract In order to investigate impact perforation behavior of Carbon Fiber Reinforced Plastics (CFRPs), a steel sphere having velocity 500–1230 m/s was impacted several kinds CFRP laminate specimens consisting different carbon fibers, interlaminate sequence, configuration; cross-ply or woven cloths, thickness. The behaviors were evaluated by absorbed energies during perforation, morphological in situ observations using high-speed framing cameras and postmortem observations. Spheres penetrated fluid manner on the front surface, perforated them an extrusive rear surface case thick specimens. thin specimens, contrary, spheres surface. energy absorption independent static mechanical properties fibers. extrusion depended tensile fracture fiber: high resulted large energy-absorption. boundary velocities changing failure modes moduli reinforced Failure significantly affected with low strength strain fiber, showed plugging fractures surfaces. With strain, larger delamination both
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