In Situ Visual Observation of Fracture Processes in Several High-Performance Fibers

Matthew Hudspeth; Ben Claus; Niranjan Parab; Boonhim Lim; Weinong Chen; Tao Sun; Kamel Fezza

doi:10.1007/s40870-015-0009-3

In Situ Visual Observation of Fracture Processes in Several High-Performance Fibers

Matthew Hudspeth, Ben Claus, Niranjan Parab, Boonhim Lim, Weinong Chen^*, Tao Sun, Kamel Fezza

^*Corresponding author for this work

Mechanical Engineering

Research output: Contribution to journal › Article › peer-review

31 Scopus citations

Abstract

Three different high-performance fibers have been imaged in situ during Kolsky bar tensile loading using two different techniques, namely optical microscopy and phase contrast imaging (PCI). Kevlar^® KM2, Dyneema^® SK76, and S-2 Glass^® fibers have been pulled using an instrumented Kolsky bar, thereby shedding light on the failure process of each fiber type. Both the Kevlar^® KM2 fiber and Dyneema^® SK76 fiber exhibit rupture defined by varying degrees of fibrillation, with the former typically showing longer fibrillated ends than the latter. S-2 Glass^® failure was found to exhibit a brittle fracture mode at a single point, although post-mortem analysis commonly yielded disintegration of the fiber gauge length, which is concluded to occur post the initial break due to fiber snap back or bending. Finally the efficacy of utilizing the PCI technique to achieve higher levels of spatial and temporal resolution is discussed.

Original language	English (US)
Pages (from-to)	55-64
Number of pages	10
Journal	Journal of Dynamic Behavior of Materials
Volume	1
Issue number	1
DOIs	https://doi.org/10.1007/s40870-015-0009-3
State	Published - Mar 1 2015

Funding

Acknowledgments We appreciate professional help from A. Deriy and B. Glagola (ANL) with certain technical and safety aspects of our experiments at 32ID. Use of the Advanced Photon Source, an Office of Science User Facility operated for the US Department of Energy (DOE) Office of Science by Argonne National Laboratory, was supported by the US DOE under Contract No. DE-AC02-06CH11357. Funding for this work has been provided by the Office of Naval Research, US ARMY PEO Soldier program, and the Materials in Extreme Dynamic Environments (MEDE) Collaborative Research Alliance for testing Dyneema® SK76, Kevlar® KM2, and S-2 Glass® fiber, respectively. The first author would also like to thank the NDSEG fellowship for graduate research funding.

Keywords

Aramid fiber
Fabrics/textiles
Impact behavior
Yarn

ASJC Scopus subject areas

Materials Science (miscellaneous)
Mechanics of Materials

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10.1007/s40870-015-0009-3

Cite this

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title = "In Situ Visual Observation of Fracture Processes in Several High-Performance Fibers",

abstract = "Three different high-performance fibers have been imaged in situ during Kolsky bar tensile loading using two different techniques, namely optical microscopy and phase contrast imaging (PCI). Kevlar{\textregistered} KM2, Dyneema{\textregistered} SK76, and S-2 Glass{\textregistered} fibers have been pulled using an instrumented Kolsky bar, thereby shedding light on the failure process of each fiber type. Both the Kevlar{\textregistered} KM2 fiber and Dyneema{\textregistered} SK76 fiber exhibit rupture defined by varying degrees of fibrillation, with the former typically showing longer fibrillated ends than the latter. S-2 Glass{\textregistered} failure was found to exhibit a brittle fracture mode at a single point, although post-mortem analysis commonly yielded disintegration of the fiber gauge length, which is concluded to occur post the initial break due to fiber snap back or bending. Finally the efficacy of utilizing the PCI technique to achieve higher levels of spatial and temporal resolution is discussed.",

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doi = "10.1007/s40870-015-0009-3",

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AU - Claus, Ben

AU - Parab, Niranjan

AU - Lim, Boonhim

AU - Chen, Weinong

AU - Sun, Tao

AU - Fezza, Kamel

PY - 2015/3/1

Y1 - 2015/3/1

N2 - Three different high-performance fibers have been imaged in situ during Kolsky bar tensile loading using two different techniques, namely optical microscopy and phase contrast imaging (PCI). Kevlar® KM2, Dyneema® SK76, and S-2 Glass® fibers have been pulled using an instrumented Kolsky bar, thereby shedding light on the failure process of each fiber type. Both the Kevlar® KM2 fiber and Dyneema® SK76 fiber exhibit rupture defined by varying degrees of fibrillation, with the former typically showing longer fibrillated ends than the latter. S-2 Glass® failure was found to exhibit a brittle fracture mode at a single point, although post-mortem analysis commonly yielded disintegration of the fiber gauge length, which is concluded to occur post the initial break due to fiber snap back or bending. Finally the efficacy of utilizing the PCI technique to achieve higher levels of spatial and temporal resolution is discussed.

AB - Three different high-performance fibers have been imaged in situ during Kolsky bar tensile loading using two different techniques, namely optical microscopy and phase contrast imaging (PCI). Kevlar® KM2, Dyneema® SK76, and S-2 Glass® fibers have been pulled using an instrumented Kolsky bar, thereby shedding light on the failure process of each fiber type. Both the Kevlar® KM2 fiber and Dyneema® SK76 fiber exhibit rupture defined by varying degrees of fibrillation, with the former typically showing longer fibrillated ends than the latter. S-2 Glass® failure was found to exhibit a brittle fracture mode at a single point, although post-mortem analysis commonly yielded disintegration of the fiber gauge length, which is concluded to occur post the initial break due to fiber snap back or bending. Finally the efficacy of utilizing the PCI technique to achieve higher levels of spatial and temporal resolution is discussed.

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In Situ Visual Observation of Fracture Processes in Several High-Performance Fibers

Abstract

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Keywords

ASJC Scopus subject areas

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