东华大学学报(英文版)
東華大學學報(英文版)
동화대학학보(영문판)
JOURNAL OF DONG HUA UNIVERSITY(ENGLISH EDITION)
2004年
4期
12-19
,共8页
于伟东%Ron Postle%严灏景
于偉東%Ron Postle%嚴灝景
우위동%Ron Postle%엄호경
fibre bundle%blend ratio%tensile curve%wool%PET fibre%modulus
The principles for the modulus method and the percentage method are established and discussed in the part following Part Ⅰ of the series papers, in which we proposed the various algorithms of the strength method and the work method. The samples of Wool/PET blended fibre bundles,the method of fibre-bundle tensile tests and the typical specific stress-extension curves from the fibre bundles with different blend ratios are the same as in Part Ⅰ. Itcan be found that the theoretical results estimated by the modulus and percentage methods accord with the experimental values highly though the calculations of the two methods are slightly more complex than those of the strength and work methods. Especially, using the modulus method can not only avoid the influence of the error caused by the determination of the tensile curve of no fibre breaking in stretching, Y (e), but also need not to know the tensile curves of mono-component fibre bundles in certaincalculation. The latter advantage of the modulus method exists in the percentage method too, but it should adopt the improved calculation of ones.