Impact characteristics of carbon fibre reinforced plastics structural members according to the variation of stacking conditions

Abstract

Circular and square carbon fibre reinforced plastics members were made of eight-ply unidirectional prepreg sheets stacked at different angles based on the collapse characteristics of circular carbon fibre reinforced plastics members. In this study, the impact energy at the crosshead speeds of 5·52, 5·14 and 4·57 m s⁻¹ were 611·52, 529·2 and 419·44 J (in circular members), and 2·16, 1·85 and 1·67 m s⁻¹ were 372·4, 274·4 and 223·44 J (in square members). The purpose was to experimentally examine absorption behaviour and strength depending on changes in the stacking configuration when circular and square carbon fibre reinforced plastics members with different stacking configurations were exposed to separate impact velocities. The impact characteristics were also considered.

Keywords:

• CFRP
• Absorbed energy
• Impact velocity
• Impact characteristics
• Collapse characteristics