Abstract
A constitutive model that describes the response of graphite/peek composite materials to high rate uniaxial deformation with resulting damage and spall fracture is presented. A nonlinear, rate-dependent description is used in conjunction with a continuum damage description of evolving delamination damage. Results of flyer plate impact experiments performed on 25 mm thick, transversely isotropic laminates are given. Comparison of measured rear-face particle velocity histories to those predicted by the theory show good agreement over a wide range of impact velocities. Computed damage profiles are compared to visual and ultrasonic observation of the post-impacted specimens.
Original language | English (US) |
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Pages (from-to) | 1-14 |
Number of pages | 14 |
Journal | Mechanics of Materials |
Volume | 19 |
Issue number | 1 |
DOIs | |
State | Published - Dec 1994 |
All Science Journal Classification (ASJC) codes
- General Materials Science
- Instrumentation
- Mechanics of Materials