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The Energy Release Rate at Knik and Peak Points for Polyester-kevlar fiber and polyester-Polyethylene fiber | ||
| journal of al-qadisiyah for pure science(quarterly) | ||
| Article 1, Volume 7, Issue 3, 2007, Pages 257-272 PDF (0 K) | ||
| Authors | ||
| H. I . JAFFER; H. M. HASAN | ||
| Abstract | ||
| A single fiber drag-out test was used in this study to measure the critical energy release rate of a crack at interface of composite ,using Nairn model at the initiation of crack (knik point) or the beginning of the difference in elastic behavior between fiber and matrix and the critical energy release rate when the crack length equal embedded length (peak point ) or full debond , the difference between these points effected by the strength of adhesion between the fiber and the matrix and also by the wettability or diffusion of polyester monomer into interfibrillar space where polyethylene is solid fiber while kevlar is rope fiber . | ||
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