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Response of open cell aluminum foams to fully reversed cyclic loading / Hernan Pinto in Journal of engineering mechanics, Vol. 137 N° 12 (Decembre 2011) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 137 N° 12 (Decembre 2011) . - pp.911-918 Titre : Response of open cell aluminum foams to fully reversed cyclic loading Type de document : texte imprimé Auteurs : Hernan Pinto, Auteur ; Sanjay R. Arwade, Auteur ; Patrick Veale, Auteur Année de publication : 2012 Article en page(s) : pp.911-918 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Metals  (material)  Foam  Fatigue  Probability  Cyclic  loads Résumé : The response of metal foams to fully reversed cyclic loading has been investigated much less than the response to tension-tension and compression-compression cyclic loads. This paper describes tests of open cell aluminum foams that are subjected to fully reversed cyclic loading. Three different damage measures are evaluated as candidates for tracking the damage state in the material. These measures and associated failure criteria track the peak tensile stress, the peak compressive stress, and the ratio of the prepeak tensile and compressive material stiffnesses in each cycle. The peak tensile stress measure and criterion gave the most stable results. Finally, the fatigue lifetime is modeled by using a statistical Weibull model. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i12/p911_s1?isAuthorized=no [article] Response of open cell aluminum foams to fully reversed cyclic loading [texte imprimé] / Hernan Pinto, Auteur ; Sanjay R. Arwade, Auteur ; Patrick Veale, Auteur . - 2012 . - pp.911-918. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 137 N° 12 (Decembre 2011) . - pp.911-918 Mots-clés : Metals  (material)  Foam  Fatigue  Probability  Cyclic  loads Résumé : The response of metal foams to fully reversed cyclic loading has been investigated much less than the response to tension-tension and compression-compression cyclic loads. This paper describes tests of open cell aluminum foams that are subjected to fully reversed cyclic loading. Three different damage measures are evaluated as candidates for tracking the damage state in the material. These measures and associated failure criteria track the peak tensile stress, the peak compressive stress, and the ratio of the prepeak tensile and compressive material stiffnesses in each cycle. The peak tensile stress measure and criterion gave the most stable results. Finally, the fatigue lifetime is modeled by using a statistical Weibull model. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v137/i12/p911_s1?isAuthorized=no