(Received 19 April 1989; accepted 19 April 1990)
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The mechanical properties of four woven cotton fabrics have been analyzed in terms of the elastic (Go) and frictional (Co) resistance to bending deformation using a Shirley cyclic bending tester. Changes in bending properties of the cotton fabrics as a consequence of wear using an Accelerotor abrasion tester in the dry condition are illustrated. Statistical correlations between the elastic and frictional parameters of deformation and other parameters such as percentage loss in weight are shown. The correlations are shown to be highly significant between elastic flexural rigidity and frictional coercive couple parameters of the deformation and percentage loss in weight of fabrics given 25 min abrasion time. Correlations between elastic and frictional parameters of deformation before the abrasion test, and with 5 and 25 min abrasion time, are also highly significant. Relations between bending parameters, mass, thickness, density, and specific volume of these fabrics before and after abrasion are reported. The result shows that weight loss may be small as a result of short periods of accelerated wear, but the changes in the bending parameters are large.
School of Engineering and Engineering Technology, Federal University of Technology, Owerri,
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