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Distribution of strain to failure of single wood pulp fibres
2001 (English)In: Nordic Pulp & Paper Research Journal, ISSN 0283-2631, E-ISSN 2000-0669, Vol. 16, no 1, 46-56 p.Article in journal (Refereed) Published
Abstract [en]

The single-fibre composite test has been applied to characterize the distribution of strain to failure of individual fibres from unbleached softwood kraft pulp. The fibre was moulded into a thermoset matrix which is subjected to a tensile test, whereupon the fibre fragmented with increasing applied strain. The measurements of mean fragment lengths and corresponding strain levels were used to determine the Weibull parameters of the distribution of strain to failure of the fibres by a least squares method. Three groups of fibres of the same kind were tested, which have been exposed to increased beating. The beating process in a PFI mill made the variability of strain to failure decrease, whereas the average value remained constant until it dropped rapidly for over-beaten fibres. This can be interpreted as a result of interfibrillar debonding induced by beating.

Place, publisher, year, edition, pages
2001. Vol. 16, no 1, 46-56 p.
Keyword [en]
wood pulp fibre, strain to failure, statistical distribution, single-fibre composite test, fibre fragmentation, beating, interfacial shear-strength, filament-composite test, statistical-theory, fiber strength, fracture, fragmentation, specimens, length, model, paper
URN: urn:nbn:se:kth:diva-20517ISI: 000168015500007OAI: diva2:339212

QC 20100525

Available from: 2010-08-10 Created: 2010-08-10 Last updated: 2016-05-31Bibliographically approved

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Gamstedt, E. Kristofer
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