LEVERAGE OF CIGARETTE ASH POWDER CONCENTRATIONS ON THE ALTERNATING BENDING FATIGUE OF UNSATURATED POLYESTER RESIN

The present work, describes an attempt was made to study the effect of cigarette ash powder concentration,on the micro hardness and alternative bending fatigue behavior of unsaturatedpolyester resin reinforced with various weight fractions of cigarette ash powder (1.25, 3.7, 4.9 Wt. %), which is natural fibers form. The preparation of the composites was achieved using hand lay-up process. During the test, fatigue tests were used by applying a stress ratio sinusoidal wave (R= -1), which is believed to give a marginal increase in temperature. The effects of the fatigue life of the test composites are determined using the stress curves (S) number of cycles (N) (S − N).The results showed that the fatigue life of the composite being produced depends on the percentage of fractions of weight. This findings also shows an increase in fatigue age by four times longer for the weight fraction of (1.25 wt. %) and more than two for cigarette ash powder (3.7 wt. %). The higher weight fraction (4.9 wt. %) of cigarette ash powder, reduced the fatigue life lower than the matrix behavior. Increasing percentage weights of cigarette ash powder increases the toughness measured by hardness for all composites.