High velocity perforation behaviour of polymer composite laminates

✍ Scribed by R.A.W. Mines; A.M. Roach; N. Jones

• Publisher: Elsevier Science
• Year: 1999
• Tongue: English
• Weight: 815 KB
• Volume: 22
• Category: Article
• ISSN: 0734-743X
• DOI: 10.1016/s0734-743x(99)00019-6

✦ Synopsis

Experimentally measured perforation data are given for woven, z-stitched and through-thickness zstitched glass polyester laminates for a number of laminate thicknesses (6, 12, 24 ply), a number of geometries of impactor (cone, #at and hemisphere), and two missile masses (6, 12 g). Impact perforation velocities ranged up to 571 m s\ on 200 by 200 mm laminates with fully clamped boundary conditions. Results are expressed in terms of static and impact perforation energies. The discussion includes a study of energy absorption mechanisms during perforation, with a view to identifying improved combinations of materials. It is concluded that all types of construction behave in a similar manner and that the #at ended missile has the largest dynamic enhancement factor, i.e. ratio of impact perforation energy to static perforation energy.