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Multiple normal loading-unloading cycles of a spherical contact under stick contact condition / Y. Zait in Transactions of the ASME . Journal of tribology, Vol. 132 N° 4 (Octobre 2010) 

Public ISBD [article]  in Transactions of the ASME . Journal of tribology > Vol. 132 N° 4 (Octobre 2010) . - 07 p. Titre : Multiple normal loading-unloading cycles of a spherical contact under stick contact condition Type de document : texte imprimé Auteurs : Y. Zait, Auteur ; V. Zolotarevsky, Auteur ; Y. Kligerman, Auteur Année de publication : 2011 Article en page(s) : 07 p. Note générale : Tribology Langues : Anglais (eng) Mots-clés : Elasticity  Finite  element  analysis  Hardening  Loading  Mechanical  contact  Plasticity  Unloading Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The multiple normal loading-unloading process of an elastic-plastic sphere by a rigid flat is analyzed using finite element method for stick contact condition and both kinematic and isotropic hardening models. The behavior of the global contact parameters as well as the stress field within the sphere tip is presented for several loading cycles. It was found that under stick contact condition, secondary plastification occurs even after the second loading cycle and that the hardening model used has little effect on the loading-unloading process. The cyclic loading process gradually converges into elastic shakedown. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...] [article] Multiple normal loading-unloading cycles of a spherical contact under stick contact condition [texte imprimé] / Y. Zait, Auteur ; V. Zolotarevsky, Auteur ; Y. Kligerman, Auteur . - 2011 . - 07 p. Tribology Langues : Anglais (eng) in Transactions of the ASME . Journal of tribology > Vol. 132 N° 4 (Octobre 2010) . - 07 p. Mots-clés : Elasticity  Finite  element  analysis  Hardening  Loading  Mechanical  contact  Plasticity  Unloading Index. décimale : 621.5 Energie pneumatique. Machinerie et outils. Réfrigération Résumé : The multiple normal loading-unloading process of an elastic-plastic sphere by a rigid flat is analyzed using finite element method for stick contact condition and both kinematic and isotropic hardening models. The behavior of the global contact parameters as well as the stress field within the sphere tip is presented for several loading cycles. It was found that under stick contact condition, secondary plastification occurs even after the second loading cycle and that the hardening model used has little effect on the loading-unloading process. The cyclic loading process gradually converges into elastic shakedown. DEWEY : 621.5 ISSN : 0742-4787 En ligne : http://scitation.aip.org/getabs/servlet/GetabsServlet?prog=normal&id=JOTRE900013 [...]