Studies on Mechanical Behavior of Glass Epoxy Composites with Induced Defects and Correlations with NDT Characterization Parameters
| Autor: | N. Janardhana Reddy, Rmvgk Rao, D. Pradeep, C. Rahul Kumar, L Srikanth |
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| Rok vydání: | 2007 |
| Předmět: |
Materials science
Polymers and Plastics business.industry Mechanical Engineering Delamination Epoxy Composite laminates Compressive strength Flexural strength Mechanics of Materials Nondestructive testing visual_art Materials Chemistry Ceramics and Composites Shear strength visual_art.visual_art_medium Ultrasonic sensor Composite material business |
| Zdroj: | Journal of Reinforced Plastics and Composites. 26:1539-1556 |
| ISSN: | 1530-7964 0731-6844 |
| DOI: | 10.1177/0731684407079520 |
| Popis: | Degradation in mechanical properties (compression, flexural and ILS) of glass epoxy composite laminates with induced defects (simulating delaminations) was studied. The defects were characterized by using the A-scan ultrasonic pulse-echo technique. The two A-scan parameters, viz. the back wall echo amplitude and time of flight, were followed respectively, as functions of the defect size (diameter) and its location in the laminate thickness. The mechanical properties of laminates were evaluated destructively for different defect sizes and locations. An attempt has been made to express the mechanical properties in terms of the two NDT scan parameters characterizing the defects and empirical equations presented. |
| Databáze: | OpenAIRE |
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