Fibers and Polymers

, Volume 19, Issue 7, pp 1479–1489 | Cite as

Modeling the Fibrillation of Kevlar® KM2 Single Fibers Subjected to Transverse Compression

  • Jeffrey M. StaniszewskiEmail author
  • Subramani Sockalingam
  • Travis A. Bogetti
  • John W. GillespieJr.


In this work, fibrillation is introduced as an energy absorbing mechanism in the modeling of Kevlar® KM2 single fibers subjected to quasi-static transverse compression. Fibrillation is simulated using a finite element model of the fiber cross-section containing discrete fibrils connected by interfibrillar cohesive zones. Model predictions of nominal stress-strain response for an assumed bilinear cohesive traction-separation interfibrillar behavior are compared to experimental data. Analysis shows that modeling of the microstructural fibril network, represented by a distribution of strong cohesive interactions, is necessary to capture the experimental response. The model provides valuable insight into the unique deformation mechanisms governing fiber fibrillation under transverse compression.


Aramid fiber Fibrillated microstructure Finite element Transverse compression Multiscale modeling 


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Copyright information

© The Korean Fiber Society and Springer Nature B.V. 2018

Authors and Affiliations

  • Jeffrey M. Staniszewski
    • 1
    Email author
  • Subramani Sockalingam
    • 2
  • Travis A. Bogetti
    • 3
  • John W. GillespieJr.
    • 4
    • 5
    • 6
    • 7
  1. 1.SURVICE Engineering CompanyBelcampUSA
  2. 2.Department of Mechanical EngineeringUniversity of South CarolinaColumbiaUSA
  3. 3.U.S. Army Research LaboratoryAberdeen Proving GroundUSA
  4. 4.Center for Composite MaterialsUniversity of DelawareNewarkUSA
  5. 5.Department of Materials Science and EngineeringUniversity of DelawareNewarkUSA
  6. 6.Department of Mechanical EngineeringUniversity of DelawareNewarkUSA
  7. 7.Department of Civil and Environmental EngineeringUniversity of DelawareNewarkUSA

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