Fatigue life-limiting parameters in fibreglass composites
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A study was conducted to determine the fatigue life-limiting parameters in E-glass fibre-reinforced vinyl esters. Because of the viscoelastic nature of fibreglass composites and the adiabatic heating during rapid fatigue cycling, the cyclic frequency has a significant effect on the fatigue resistance of the composites. For these same reasons, creep phenomena must also be considered in rationalizing fatigue characteristics of the materials. The surface condition of the composite, stress level, curing condition, and the surface integrity of fibreglass were also found to alter the fatigue behaviour of fibreglass composites.
KeywordsPolymer Ester Fatigue Vinyl Stress Level
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