Results 11 to 20 of about 829,168 (336)
Mathematics in Engineering, 2023 We report a continuum theory for 2D strain gradient materials accounting for a class of dissipation phenomena. The continuum description is constructed by means of a (reversible) placement function and by (irreversible) damage and plastic functions ...
Luca Placidi +7 more
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Constitutive Model of Thin Metal Sheet in Bulging Test Considering Strain Gradient Hardening
Medžiagotyra, 2020 The study of the size effect was one of the most important subjects in the field of micro-forming. To investigate the stress of the thin sheet in the bulging test with the second order size effect, a constitutive equation considering the strain gradient ...
Wei LIANG, Tieping WEI, Xiaoxiang YANG
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Atherosclerotic Plaque Segmentation Based on Strain Gradients: A Theoretical Framework
Mathematics, 2022 Background: Atherosclerotic plaque detection is a clinical and technological problem that has been approached by different studies. Nowadays, intravascular ultrasound (IVUS) is the standard used to capture images of the coronary walls and to detect ...
Álvaro T. Latorre +4 more
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A theory of strain-gradient plasticity with effect of internal microforce [PDF]
Theoretical and Applied Mechanics, 2017 This paper develops a theory of strain gradient plasticity for isotropic bodies undergoing small deformation in the absence of plastic spin. The proposed theory is based on a system of microstresses which include a microstress vector consistent with ...
Borokinni Adebowale +2 more
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Progress of cross-scale mechanics in additive manufacturing technology for aeronautical application
Journal of Aeronautical Materials, 2023 The application of metal additive manufacturing technology and products in the aviation field requires optimized structural design at macroscale and precise manufacture control at microscale.
YU Zhijie +4 more
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Extraordinary strain hardening by gradient structure [PDF]
Proceedings of the National Academy of Sciences, 2014 Significance Nature creates the gradient structure (GS) for a purpose: to make biological systems strong and tough to survive severe natural forces. For the grain-size GS, the deformation physics is still unclear. One wonders if the grain-size GS in the nanomicroscale would also benefit materials engineered by mankind.
XiaoLei, Wu +4 more
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Strain gradient effects on concrete stress–strain curve [PDF]
Proceedings of the Institution of Civil Engineers - Structures and Buildings, 2012 The stress–strain characteristic of concrete developed in flexure is one of the essential parameters for the ultimate flexural strength design of reinforced concrete (RC) members. Currently, the stress–strain curve of concrete developed in flexure is obtained by scaling down the uniaxial stress–strain curve.
Ho, JCM, Peng, J
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Possibilities of the practical use of a stationary strain gradient in the interelectrode volume of unpolarized ferroceramic plates [PDF]
Journal of Advanced Dielectrics, 2020 It has been established that in plates made of hot-pressed ferroelectric ceramics PZT-19 (Tc=300∘C), after metal electrodes from Ag are burned into opposite surfaces with different depths of mechanical damage, counter-directional stationary deformation ...
Yu. N. Zakharov +9 more
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Theory and computation of higher gradient elasticity theories based on action principles [PDF]
, 2017 In continuum mechanics, there exists a unique theory for elasticity, which includes the first gradient of displacement. The corresponding generalization of elasticity is referred to as strain gradient elasticity or higher gradient theories, where the ...
Abali, B. Emek +2 more
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Flexoelectric materials and their related applications: A focused review
Journal of Advanced Ceramics, 2019 Flexoelectricity refers to the mechanical-electro coupling between strain gradient and electric polarization, and conversely, the electro-mechanical coupling between electric field gradient and mechanical stress. This unique effect shows a promising size
Longlong Shu +5 more
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