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Experimental Mechanics

, Volume 59, Issue 5, pp 669–679 | Cite as

A Microscopic Experimental Method Transversely Loading on Single High-Performance Fibers

  • J. GaoEmail author
  • Y. Nie
  • B.H. Lim
  • N. Kedir
  • W. Chen
Article
  • 88 Downloads

Abstract

We developed a microscopic experimental method that transversely loads and images single high-performance fibers. The experimental set-up was inside the chamber of a scanning electron microscope (SEM). Force and displacement histories were recorded by the loading device. The SEM enabled in-situ observation of the fiber’s initial contact with the transverse indenter and subsequent deformation, crack initiation and propagation until the final failure. Within the loading device, fiber gauge length, indenter tip radius and loading direction can be varied as desired. To demonstrate the new experimental capability, initial results for a razor blade transversely cutting a Dyneema® SK76 fiber are presented in this paper. To avoid the effect from the conductive coating on the mechanical behavior of the fiber, a low vacuum detector was adopted to capture the deformation and failure of an uncoated fiber. These experiments revealed the damage and failure processes of single fibers with high-resolution micrographs.

Keywords

Transverse loading Single fiber Uncoated fiber Failure process SEM 

Notes

Acknowledgements

The authors would like to thank for the technical support from Christopher J. Gilpin, Laurie Mueller, Robert Seiler at Life Science Microscopy Facility at Purdue University.

Funding

During the process of this research effort, Jinling Gao and Boon Him Lim were supported by a Collaborative Research Agreement (W91CRB-14-C-0025) between US Army PEO Soldier and Purdue University. Yizhou Nie was supported by an ARO grant (W911NF-17-1-0241, PM Dr. Ralph Antheniem) to Purdue University. Nesredin Kedir was supported by an ONR grant (N00014-17-1-2711, PM Dr. David Shifler) to Purdue University. Weinong Chen was supported by all three programs.

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Copyright information

© Society for Experimental Mechanics 2019

Authors and Affiliations

  1. 1.School of Aeronautics and AstronauticsPurdue UniversityWest LafayetteUSA
  2. 2.School of Materials EngineeringPurdue UniversityWest LafayetteUSA

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