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Abstract
The aim of this study is to experimentally investigate the effects of fiber orientations on the fatigue strength, fatigue life and surface fracture of 2 ply Pineapple Leaf Fiber Composite. Fatigue test specimens with 45o and 90o fiber orientation are loaded using rotary bending fatigue test machine at several load levels. Fatigue strength and fatigue life are measured during fatigue test and fracture surface of fatigue specimens are observed using microscope. The results show that 2 ply Pineapple Leaf Fiber Composite with 45o fiber orientation have highest fatigue strength than 2 ply Pineapple Leaf Fiber Composite with 90o fiber orientation. The shape of the surface fracture in the test specimen varies widely which is generally caused by Multiple Origins or several fault starting points at once which can erode or tear the surface of the specimen before the specimen finally fails or breaks.
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