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Publication
Journal of Materials Research
Paper
A note on the elastic contact stiffness of a layered medium
Abstract
A perturbation method is used to confirm that the elastic contact stiffness associated with a flat-ended punch indenting a layered medium is insensitive to the cross-section shape of the punch as long as the shape does not differ too much from a circle. This result supports the practice of modeling nonaxisymmetric indenters such as Vickers or Berkovich indenters as an axisymmetric flat-ended cylindrical punch. © 1993, Materials Research Society. All rights reserved.