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The following data were obtained in a resin burn-off test of an E-glass-polyester sample: Weight of an crucible = 10.1528g, Weight of crucible + sample before burn off = 10.5219g, Weight of crucible + sample after burn off = 10.3221g. Calculate the fiber weight fraction, the fiber volume fraction, and the density of the composite sample. Assume Pf = 2.54g/ml, and Pm = 1.25g/ml. Do you expect the calculated value to be higher or lower than the actual value? tips: Vf = ((Wf/Pf))/((Wf/Pf) + (1-Wf)/Pm) Pc = (1)/((Wf/Pf) + (1-Wf)/Pm)
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The following data were obtained in a resin burn-off test of an E-glass-polyester sample: Weight of an crucible = 10.1528g, Weight of crucible + sample before burn off = 10.5219g, Weight of crucible + sample after burn off = 10.3221g.
Calculate the fiber weight fraction, the fiber volume fraction, and the density of the composite sample. Assume Pf = 2.54g/ml, and Pm = 1.25g/ml. Do you expect the calculated value to be higher or lower than the actual value?
tips: Vf = ((Wf/Pf))/((Wf/Pf) + (1-Wf)/Pm)
Pc = (1)/((Wf/Pf) + (1-Wf)/Pm)
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