The effect of preload on the pull-off force in indentation tests of microfibre arrays Journal Article uri icon



  • ; We determined how preload and work of adhesion control the force required to pull a circular cylindrical indenter off a microfibre array. Five regimes, with different contact behaviours, are identified for the unloading phase of indentation. These regimes are governed by two dimensionless parameters. Above a critical preload, the pull-off force and the pull-off stress reach a plateau value. The critical preload, as well as the plateau pull-off force (stress), is found to depend on a single dimensionless parameter; q; , which can be interpreted as a normalized work of adhesion.;

publication date

  • March 8, 2009

Full Author List

  • Long R; Hui C-Y

Other Profiles

Additional Document Info

start page

  • 961

end page

  • 981


  • 465


  • 2103