Normal and oblique hypervelocity impacts on carbon fibre/peek composites

✍ Scribed by Chantel G. Lamontage; Gerald N. Manuelpillai; Emma A. Taylor; Roderick C. Tennyson

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 1006 KB
• Volume: 23
• Category: Article
• ISSN: 0734-743X
• DOI: 10.1016/s0734-743x(99)00101-3

✦ Synopsis

A series of normal and oblique hypervelocity impact tests were performed on carbon tibre/PEEK composite specimens using the Light Gas Gun facilities at the University of Kent at Canterbury. The tests were conducted on 16 ply and 24 ply targets, using 1 mm and 2 mm aluminum projectiles, at velocities of approximately 5 km/s, and at impact angles of 0, 30 and 45 degrees. The primary objective of this investigation was to add oblique impact data to the University of Toronto Institute for Aerospace Studies (UTIAS) database on hypervelocity impact damage to composites. The parameters investigated in this study were debris cloud (primary and secondary) dispersion cone angles, (equivalent) entry and exit crater diameters, and front and rear surface delamination damage zones. The results of the analysis showed that the cone angles were not symmetric about the projectile velocity vector, maxima for both angles occurring at a