Preprint Article Version 1 This version not peer reviewed

Fracture Failure Mechanisms of Long Single PA6 Fibers

Version 1 : Received: 19 May 2017 / Approved: 22 May 2017 / Online: 22 May 2017 (05:29:48 CEST)

A peer-reviewed article of this Preprint also exists.

Ding, H.; Zhang, Y.; He, Z. Fracture Failure Mechanisms of Long Single PA6 Fibers. Polymers 2017, 9, 243. Ding, H.; Zhang, Y.; He, Z. Fracture Failure Mechanisms of Long Single PA6 Fibers. Polymers 2017, 9, 243.

Journal reference: Polymers 2017, 9, 243
DOI: 10.3390/polym9070243

Abstract

The present study investigates the failure mechanisms of industrial fiber materials, using a custom designed fiber cutting performance test bench. The fracture morphologies of single PA6 fibers are examined by scanning electron microscopy. The analysis reveals that fiber cutting can be distinguished according to four distinct stages of fiber failure represented by shearing, cutting, brittle fracture, and tensile failure, which are the result of different mechanisms active during the processes of crack initiation, extension and fracture. The results of fractographic analysis are further verified by an analysis of the blade assembly speed with respect to time over the entire fracture failure process based on high-speed camera data. The results of fractographic analysis and blade assembly speed are fully consistent.

Subject Areas

single fiber; cutting; fracture morphology; failure mechanism

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