Evaluating the mechanical properties of a CFRP tube under a lateral impact load using the split Hopkinson bar

Abstract

The mechanical properties of a CFRP tube, such as strength, stiffness, and energy absorption, are investigated under a lateral impact load using the split Hopkinson pressure bar. In order to obtain the load–displacement curve, a ramped wave was applied to the specimen. It was observed that the ramped incident wave can be used for evaluating the mechanical properties of a CRRP tube under a lateral impact load. The dependence of the displacement rate on the properties mentioned above is also discussed. The result indicates that crack propagation behavior strongly depends on the displacement rate.

Keywords:

• SPLIT HOPKINSON PRESSURE BAR
• CFRP TUBE
• DYNAMIC BEHAVIOR
• ENERGY ABSORPTION
• RAMPED WAVE