Results 121 to 130 of about 3,870,040 (252)

Dynamic Compressive Characteristics of Sandstone under Confining Pressure and Radial Gradient Stress with the SHPB Test

open access: yesAdvances in Civil Engineering, 2018
Research on the dynamic compressive characteristics of sandstone under radial gradient stress and confining pressure is conducive to understanding the characteristics of the surrounding rock, especially in an excavation operation for an underground mine ...
Shiming Wang   +5 more
doaj   +1 more source

Homogenization of frame lattices leading to second gradient models coupling classical strain and strain-gradient terms

open access: yesMathematics and mechanics of solids, 2019
We determine in the framework of static linear elasticity the homogenized behavior of three-dimensional periodic structures made of welded elastic bars.
H. Abdoul-Anziz, P. Seppecher, C. Bellis
semanticscholar   +1 more source

A longitudinal gradient architecture achieves better tensile properties in Ti6242 alloy

open access: yesJournal of Materials Research and Technology, 2023
Simultaneous increase in strength and ductility is obtained in Ti6242 alloys using a longitudinal gradient structure. Such architecture demonstrates strain hardening regarding the gradient layer's volume fraction (Vf).
Yang Guo, Pingwei Xu, Yu Liang
doaj  

Strain hardening-softening oscillations induced by nanoindentation in bulk solids [PDF]

open access: yesarXiv, 2016
Nanoindentation is a widely used method for sensitive exploration of the mechanical properties of micromechanical systems. We derived an empirical analysis technique to extract stress-strain field gradient and divergence representations from nanoindentation measurements. With this approach local gradients and heterogeneities can be discovered to obtain
arxiv  

Determination of the Appropriate Gradient Elasticity Theory for Bending Analysis of Nano-beams by Considering Boundary Conditions Effect

open access: yesLatin American Journal of Solids and Structures
In the present paper, a critique study on some models available in the literature for bending analysis of nano-beams using the gradient elasticity theory is accomplished.
Mahmood Mehrdad Shokrieh, Iman Zibaei
doaj   +1 more source

Strain-Gradient Bar-Elastic Substrate Model with Surface-Energy Effect: Virtual-Force Approach. [PDF]

open access: yesNanomaterials (Basel), 2022
Limkatanyu S   +6 more
europepmc   +1 more source

Higher Order Elastic Instabilities of Metals: From Atom to Continuum Level [PDF]

open access: yesarXiv, 2017
Strain-based theory on elastic instabilities is being widely employed for studying onset of plasticity, phase transition or melting in crystals. And size effects, observed in nano-materials or solids under dynamic loadings, needs to account for contributions from strain gradient.
arxiv  

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