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作者:George Z. Voyiadjis , Peter I. Kattan
来源:[J].Acta Mechanica(IF 1.247), 2017, Vol.228 (7), pp.2499-2517Springer
摘要:Refinements and generalizations of the decomposition of the damage variable are presented within the framework of continuum damage mechanics. It is assumed that damage in a solid is due mainly to cracks and voids. The classical decomposition of the damage variable into a dam...
作者:George Z. Voyiadjis , Peter I. Kattan
来源:[J].Acta Mechanica(IF 1.247), 2017, Vol.228 (12), pp.4249-4268Springer
摘要:A new type of material is postulated that is self-regenerating in the context of damage processes. The theory is built mathematically within the framework of continuum damage mechanics. The mathematical formulation is both systematic and consistent. For the generation of such a p...
作者:Bilal Ahmed , George Z. Voyiadjis , Taehyo Park
来源:[J].International Journal of Solids and Structures(IF 1.871), 2020, Vol.191-192, pp.56-75Elsevier
摘要:Abstract(#br)In the presented work, a new plastic damage model for concrete is proposed with a novel stress decomposition, to account for shear induced damage. A consistent thermodynamic approach is used to derive the constitutive model. With the classical stress decompositi...
作者:George Z. Voyiadjis , Yooseob Song
来源:[J].Acta Mechanica(IF 1.247), 2020, Vol.231 (1), pp.19-34Springer
摘要:Dynamic strain aging has a huge effect on the microstructural mechanical behavior of Inconel 718 high-performance alloy when activated. In a number of experimental researches, significant additional hardening due to the dynamic strain aging phenomenon was reported. A constit...
作者:George Z. Voyiadjis , Yooseob Song
来源:[J].International Journal of Plasticity(IF 4.356), 2019, Vol.121, pp.21-75Elsevier
摘要:Abstract(#br)Over the last three decades, a number of researchers have used the gradient-enhanced plasticity theory to model the microstructural material behavior, which is not able to be captured by the conventional plasticity theory, within the continuum based framework. This p...
作者:George Z. Voyiadjis , Aref Samadi-Dooki , Leila Malekmotiei
来源:[J].Polymer Testing(IF 1.646), 2017, Vol.61, pp.57-64Elsevier
摘要:Abstract(#br)Semicrystalline high performance polymers (HPPs) exhibit desirable thermomechanical properties which make them suitable materials in several industries. However, when their mechanical characteristics are investigated at nanoscale, the inhomogeneous nature of semicrys...
作者:George Z. Voyiadjis , Wojciech Sumelka
来源:[J].Journal of the Mechanical Behavior of Biomedical Materials(IF 2.368), 2018Elsevier
摘要:Abstract(#br)In this paper the human brain tissue constitutive model for monotonic loading is developed. The model in this work is based on the anisotropic hyperelasticity assumption (the transversely isotropic case) together with modelling of the evolving load-carrying capacity ...
作者:George Z. Voyiadjis , Mohammadreza Yaghoobi
来源:[J].Scripta Materialia(IF 2.821), 2017, Vol.130, pp.182-186Elsevier
摘要:Abstract(#br)In metallic samples of confined volumes, the size effects are governed by the characteristics of the dislocation network. However, there are only few studies that quantitatively tried to relate the dislocation network properties to the sample size effects. The presen...
作者:George Z. Voyiadjis , Aref Samadi-Dooki
来源:[J].Journal of the Mechanical Behavior of Biomedical Materials(IF 2.368), 2018, Vol.83, pp.63-78Elsevier
摘要:Abstract(#br)Being extremely soft, brain tissue is among the most challenging materials to be mechanically quantified. Despite recent advances in mechanical testing of ultra-soft matters, there still exists a need for robust procedures to analyze their behavior at large defo...

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