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http://hdl.handle.net/2080/1327
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| Title: | Failure and Fractography Studies of FRP Composites: Effects of Loading Speed and Environments |
| Authors: | Dalai, R P
Ray, B C |
| Keywords: | FRP Composites |
| Issue Date: | 2011 |
| Citation: | PFAM 19 ( Processing and Fabrication of Advanced Materails) , University of Auckland, New Zealand, 14-17th Januray, 2011 |
| Abstract: | Advanced fibrous polymeric composites are one of the most successful composite material systems due to their wide range of advantages such as high specific strength and stiffness, fatigue properties and corrosion resistance. Composite
structures undergo different loading conditions i.e. from static to dynamic during their service life. The polymer matrix is more susceptible to the environmental changes than the fiber and thus dominates the mechanical behavior of FRP
composites. Polymers are characterized as visco-elastic materials that their mechanical properties are strain rate dependent or they are called as sensitive to the rate at which loaded. At higher crosshead speed due to shorter load assisted relaxation time, there is reduction in ILSS. The polymer gets more time for relaxation at lower crosshead speeds; as a result there is enhancement of ILSS values. Fracture processes at the crack tip are controlled by thermal relaxation
time and mechanical relaxation. (At higher strain... |
| URI: | http://hdl.handle.net/2080/1327 |
| Appears in Collections: | Conference Papers
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