Auteur George Z. Voyiadjis
Documents disponibles écrits par cet auteur (11)
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Sang-Youl Lee, Auteur ; Taehyo Park, Auteur ; George Z. Voyiadjis, Auteur |A new refined nondestructive evaluation technique for concrete decks with arbitrary damage shapes is presented, and its utility in detecting the location and extent of the damage using only a single dynamic measurement signal is demonstrated. Si[...]
Article : texte imprimé
Sang-Youl Lee, Auteur ; Taehyo Park, Auteur ; George Z. Voyiadjis, Auteur |A new refined nondestructive evaluation technique for concrete decks with arbitrary damage shapes is presented, and its utility in detecting the location and extent of the damage using only a single dynamic measurement signal is demonstrated. Si[...]
Article : texte imprimé
Wang, Chi-Hsiang, Auteur ; George Z. Voyiadjis, Éditeur scientifique ; Shuenn-Yih Chang, Auteur |Biaxial flexural interaction has been known to significantly affect, in many cases magnify, structural response in the inelastic range. Compared to uniaxial cases, the distinct characteristics of biaxial hysteresis curves often observed are nega[...]
Article : texte imprimé
Ziad N. Taqieddin, Auteur ; George Z. Voyiadjis, Auteur ; Amin H. Almasri, Auteur |In this work, a new concrete model that strongly couples continuum-damage-mechanics to elastoplasticity is presented. The model incorporates a plasticity yield criterion written in terms of the nominal/damaged, rather than effective, stress spac[...]
Article : texte imprimé
Amin Almasri, Auteur ; George Z. Voyiadjis, Auteur |A constitutive model is developed in this work to describe the mechanical behavior of body centered cubic metals under a wide range of strain rates and temperatures. The model is based on macromechanical state variables such as stress, strain, a[...]
Article : texte imprimé
Amin Almasri, Auteur ; George Z. Voyiadjis, Auteur |A constitutive model is developed in this work to describe the mechanical behavior of body centered cubic metals under a wide range of strain rates and temperatures. The model is based on macromechanical state variables such as stress, strain, a[...]
Article : texte imprimé
Taehyo Park, Auteur ; Lee, Sunghee, Auteur ; George Z. Voyiadjis ; Victor N. Kaliakin, Éditeur scientifique |Free vibration analysis of a through-width multidelaminated beam is performed in the present study. Multiple delaminations are assumed to spread from the top through the thickness direction of the beam. The natural frequencies of the multidelami[...]
Article : texte imprimé
Abed, Farid, Auteur ; George Z. Voyiadjis, Auteur ; Manzari, Madjid T., Éditeur scientifique |A general consistent thermodynamic framework for small strain thermoviscoplastic deformations of face-centered cubic (FCC) metals is presented in this study. An appropriate and consistent Helmholtz free energy definition is incorporated, after c[...]
Article : texte imprimé
Hoe I. Ling, Auteur ; Yang, Songtao, Auteur ; George Z. Voyiadjis, Éditeur scientifique |Based on the critical state concept and with the use of a state parameter, a unified generalized plasticity model is proposed for sand. The model uses a nonlinear critical state line. The plastic modulus, loading vectors and plastic flow directi[...]
Article : texte imprimé
Belenkiy, L. M., Auteur ; George Z. Voyiadjis, Éditeur scientifique |This paper demonstrates deriving upper-bound solutions of geometrically nonlinear problems for beams and plates from rigid perfectly plastic material by the principles of virtual work in general form and stationary of total energy. Presented non[...]
Article : texte imprimé
George Z. Voyiadjis, Auteur ; Amin H. Almasri, Auteur |Material length scale that can be used in nonlocal gradient theories is obtained in this work based on experimental observations for two metals using nanoindentation experiments. The materials are cold rolled 1018 steel and oxygen free high cond[...]
