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Interface behavior of a bimaterial plate under dynamic loading / Jordanka Ivanova in Journal of engineering mechanics, Vol. 136 N° 10 (Octobre 2010) 

Public ISBD [article]  in Journal of engineering mechanics > Vol. 136 N° 10 (Octobre 2010) . - pp.1194-1201 Titre : Interface behavior of a bimaterial plate under dynamic loading Type de document : texte imprimé Auteurs : Jordanka Ivanova, Auteur ; Gergana Nikolova, Auteur ; Petia Dineva, Auteur Année de publication : 2010 Article en page(s) : pp.1194-1201 Note générale : Mécanique appliquée Langues : Anglais (eng) Mots-clés : Cracking  Shear  lag  Bonding  Delaminating  Plates  Dynamic  loads. Résumé : The paper deals with interface behavior of bimaterial ceramic-metal composites under dynamic time-harmonic load. The first plate is precracked with a normal crack touching the interface between the plates. It is assumed that the respective restriction for the ratio of energy release rates of the plates allowing the occurrence of an interface single delamination before the initiation of the normal crack in the second plate is satisfied. The growth of interface delamination is not considered. The used approximate shear-lag dynamic approach gives a possibility to obtain solutions in a closed form for axial and shear stresses of the structure. At an elastic-brittle interface behavior theoretical predictions for single debond length of two bimaterial structures are calculated. The parametric analysis reveals the sensitivity of the interface single debond length and shear stress to the type of bimaterial structure and to the characteristics of the dynamic load—in particular its frequency and amplitude. All results are illustrated in figures and tables and are discussed. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v136/i10/p1194_s1?isAuthorized=no [article] Interface behavior of a bimaterial plate under dynamic loading [texte imprimé] / Jordanka Ivanova, Auteur ; Gergana Nikolova, Auteur ; Petia Dineva, Auteur . - 2010 . - pp.1194-1201. Mécanique appliquée Langues : Anglais (eng) in Journal of engineering mechanics > Vol. 136 N° 10 (Octobre 2010) . - pp.1194-1201 Mots-clés : Cracking  Shear  lag  Bonding  Delaminating  Plates  Dynamic  loads. Résumé : The paper deals with interface behavior of bimaterial ceramic-metal composites under dynamic time-harmonic load. The first plate is precracked with a normal crack touching the interface between the plates. It is assumed that the respective restriction for the ratio of energy release rates of the plates allowing the occurrence of an interface single delamination before the initiation of the normal crack in the second plate is satisfied. The growth of interface delamination is not considered. The used approximate shear-lag dynamic approach gives a possibility to obtain solutions in a closed form for axial and shear stresses of the structure. At an elastic-brittle interface behavior theoretical predictions for single debond length of two bimaterial structures are calculated. The parametric analysis reveals the sensitivity of the interface single debond length and shear stress to the type of bimaterial structure and to the characteristics of the dynamic load—in particular its frequency and amplitude. All results are illustrated in figures and tables and are discussed. DEWEY : 620.1 ISSN : 0733-9399 En ligne : http://ascelibrary.org/emo/resource/1/jenmdt/v136/i10/p1194_s1?isAuthorized=no