The effect of drilled and moulded-in circular holes of woven fabric composites on failure strength have been examined in flexural test. Three types of woven fabric-reinforced composite systems were used: glass fiber (E glass), Kevlar fiber, and glass- Kevlar hybrid in polyester matrix. All these types are of (30%) volume fraction, and hole diameter of (1, 2, 3, 4 and 5 mm) for each type. ISO standard flexural specimens were tested and repeated three times.
It is noticed that the specimens with moulded-in holes exhibit failure strengths higher than those of drilled specimens by (7- 24%). Also the values of stress concentration factors (Kt) increase with increasing the hole size for all types of laminates, and they were arranged in an ascending order as follows: Kevlar/ polyester, glass-kevlar hybrid/ polyester, and glass/ polyester.
Sabah M. Al-Ameen,E . (2011). FAILURE STRENGTH OF FABRIC COMPOSITES WITH DRILLED AND MOULDED-IN HOLES. Al-Qadisiyah Journal for Engineering Sciences, 4(2), 1-8.
MLA
Sabah M. Al-Ameen,E . "FAILURE STRENGTH OF FABRIC COMPOSITES WITH DRILLED AND MOULDED-IN HOLES", Al-Qadisiyah Journal for Engineering Sciences, 4, 2, 2011, 1-8.
HARVARD
Sabah M. Al-Ameen E. (2011). 'FAILURE STRENGTH OF FABRIC COMPOSITES WITH DRILLED AND MOULDED-IN HOLES', Al-Qadisiyah Journal for Engineering Sciences, 4(2), pp. 1-8.
CHICAGO
E Sabah M. Al-Ameen, "FAILURE STRENGTH OF FABRIC COMPOSITES WITH DRILLED AND MOULDED-IN HOLES," Al-Qadisiyah Journal for Engineering Sciences, 4 2 (2011): 1-8,
VANCOUVER
Sabah M. Al-Ameen E. FAILURE STRENGTH OF FABRIC COMPOSITES WITH DRILLED AND MOULDED-IN HOLES. QJES. 2011;4(2):1-8.
