Abstract
AbstractA stochastic Monte-Carlo approach, based on the kinetic theory of fracture, has been used to study the axial maximum tensile strength of polymer fibers. The approach is entirely microscopic and the inhomogenous distribution of the external stress among atomic bonds near the chain ends is explicitly taken into account. Both primary and secondary bonds are assumed to break during fracture of the polymer fiber. The approach has been applied to perfectly oriented and ordered polyethylene and poly(p-phenylene-terephthalamide) fibers. The influence of the molecular weight, temperature ard strain rate on the axial tensile properties are presented.
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