THE USE OF WIRE STRAIN GAGES TO DETECT SOME TYPES OF SPLITTING FAILURE IN NOTCHED COMPOSITES | ||
| International Conference on Aerospace Sciences and Aviation Technology | ||
| Article 19, Volume 5, ASAT CONFERENCE 4 - 6 May 1993, CAIRO, May 1993, Pages 231-241 PDF (2.63 M) | ||
| Document Type: Original Article | ||
| DOI: 10.21608/asat.1993.25625 | ||
| Author | ||
| Hatem H. DAKEN | ||
| Assist Professor of Mechanical Design and Head, Design with Innovative Materials Group, Military Technical College, Cairo, EGYPT. | ||
| Abstract | ||
| Two experimental investigations have demonstrated the extreme usefulness of using wire strain gages in studying the mechanical behavior of com-posites. Wire strain gages have also shown their capacity in detecting some splitting failure types in notched composites under tensile loads. The first investigation entailed notched [07 8 unidirectional graphite/epoxy composites. An arrangement of wire strain gages around the notch boundary has easily detected the onset ofsplitting damage in the specimen. Splitting damage is through-the-thickness matrix cracks emanating from the notch tips and propagating along the filament direction. The second investigation entailed notched [0/145°Js graphite/epoxy laminates. Splitting damage in both the 0° and 45° plies have been identified using a modified gage arrangement. | ||
|
Statistics Article View: 148 PDF Download: 249 |
||
