A finite-element analysis of the indentation of an elastic-work hardening layered half-space by an elastic

Sen S., Aksakal B., Ozel A.

INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES, cilt.40, sa.12, ss.1281-1293, 1998 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 40 Sayı: 12
  • Basım Tarihi: 1998
  • Doi Numarası: 10.1016/s0020-7403(98)00019-8
  • Dergi Adı: INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1281-1293
  • Anahtar Kelimeler: elastic-stiff and hard layer, elastic-plastic substrate, elastic indenter, contact stress-strain, MECHANICAL STRESSES, CONTACT, COATINGS
  • Atatürk Üniversitesi Adresli: Evet

Özet

An elastic-plastic contact problem in elastic-work hardening layered half-space indented by an elastic sphere was solved numerically using the finite element method. The case of a surface layer stiffer than the substrate is considered, and general solutions for the subsurface stresses and deformation fields are presented for a relatively thin elastic layer. Differences between the elastic and elastic-plastic solutions for the contact pressure distribution have been investigated for various layer thicknesses. Crack initiation and decohesion of the layer was also discussed with reference to the growth of the plastic zone. (C) 1998 Elsevier Science Ltd. All rights reserved.