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Response of composite materials to low velocity impact
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Srinivasan, K. Hinkley, J. A. Jackson, W. C. |
| Copyright Year | 1991 |
| Description | Orthotropic and quasiisotropic laminates clamped at the edges were impacted by an instrumented falling weight. Five matrix materials, comprising a baseline epoxy, two toughened thermosets, and amorphous and crystalline thermoplastics were studied. For each material, the projected damage area and residual compression strengths and strains were determined as a function of impact energy. Principal conclusions are: (1) incipient damage associated with a prominent load drop during the impact test seems to be decisive for residual properties; (2) subtle rate effects are present with some materials; and (3) results from the small scale tests parallel those in standard tests and may be adequate for screening purposes. |
| File Size | 1528707 |
| Page Count | 52 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_19910006024 |
| Archival Resource Key | ark:/13960/t82k1bp7b |
| Language | English |
| Publisher Date | 1991-01-01 |
| Access Restriction | Open |
| Subject Keyword | Composite Materials Thermoplastic Resins Damage Assessment Polymer Matrix Composites Epoxy Resins Low Speed Fiber Composites Amorphous Materials Compressive Strength Impact Tests Laminates Impact Damage Impact Tolerances Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
