This article is cited in 7 papers

Mechanical properties, strength physics and plasticity

Features of statistical strength distributions in mono- and polyfilament ultraoriented high-strength fibers of ultrahigh-molecular-weight polyethylene

Yu. M. Boiko^a, V. A. Marikhin^a, O. A. Moskalyuk^b, L. P. Myasnikova<sup>a

a</sup> Ioffe Institute, St. Petersburg
^b St. Petersburg State University of Technology and Design

Abstract: The patterns of the statistical distributions of tensile strength of high-strength ultraoriented mono-and multifilament fibers, consisting of several hundred single fibers of ultra-high-molecular-weight polyethylene (UHMWPE), have been analyzed using the Weibull and Gaussian models by considering a large number of measurements (50 identical samples in each series). It has been shown that the strength distribution of the multifilament UHMWPE fibers can be described both within the normal Gaussian distribution and the standard Weibull distribution function. At the same time, the strength distribution of the UHMWPE monofilaments oriented to a final draw ratio of 120 is not subject to the normal distribution. The reasons for the revealed differences in the types of the statistical strength distributions of the mono- and multifilaments of high-strength UHMWPE during fracture are discussed.

Keywords: ultra-high-molecular-weight polyethylene, gel-technology, orientational drawing, strength, statistics.

Received: 25.11.2019
Revised: 25.11.2019
Accepted: 25.11.2019

DOI: 10.21883/FTT.2020.04.49125.637

 English version: Physics of the Solid State, 2020, 62:4, 676–681

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