Results 11 to 20 of about 18,717 (262)

Instability and Wrinkles in the Bending of elastic sector with analytical WKB method [PDF]

open access: yesمجله مدل سازی در مهندسی, 2022
In this paper, We purpose to analyze the large bending of elastic curved structures that found in the engineering, science and nature. We investigated large bending of an open sector circular cylindrical tube into a complete circular cylindrical tube ...
ALIREZA HADIPOUR, Murteza Sanjaranipour
doaj   +1 more source

A Study of Nonlinear Elasticity Effects on Permeability of Stress Sensitive Shale Rocks Using an Improved Coupled Flow and Geomechanics Model: A Case Study of the Longmaxi Shale in China

open access: yesEnergies, 2018
Gas transport in shale gas reservoirs is largely affected by rock properties such as permeability. These properties are often sensitive to the in-situ stress state changes. Accurate modeling of shale gas transport in shale reservoir rocks considering the
Chenji Wei   +7 more
doaj   +1 more source

Nonreciprocal elasticity and the realization of static and dynamic nonreciprocity

open access: yesScientific Reports, 2020
The realization of the mechanical nonreciprocity requires breaking either the time-reversal symmetry or the material deformation symmetry. The time-reversal asymmetry was the commonly adopted approach to realize dynamic nonreciprocity.
Mohamed Shaat
doaj   +1 more source

Intrinsic Nonlinear Elasticity: An Exterior Calculus Formulation

open access: yesJournal of Nonlinear Science, 2023
AbstractIn this paper, we formulate the theory of nonlinear elasticity in a geometrically intrinsic manner using exterior calculus and bundle-valued differential forms. We represent kinematics variables, such as velocity and rate of strain, as intensive vector-valued forms, while kinetics variables, such as stress and momentum, as extensive covector ...
Rashad, Ramy   +4 more
openaire   +2 more sources

Dynamic characterization of progressively damaged segmental masonry arches with one settled support: experimental and numerical analyses

open access: yesFracture and Structural Integrity, 2020
This paper aims to explore the dynamic behavior of a segmental masonry arch subjected to increasing horizontal displacements of one support. To this end, output-only dynamic identification techniques are first used to track the evolution of the dynamic ...
Maria Giovanna Masciotta   +7 more
doaj   +1 more source

Nonlinear flexure mechanics of beams: stress gradient and nonlocal integral theory

open access: yesMaterials Research Express, 2021
In order to study the intrinsic size-effects, the stress gradient theory is implemented to a nano-scale beam model in nonlinear flexure. The nonlocal integral elasticity model is considered as a suitable counterpart to examine the softening behavior of ...
Mahdad Fazlali   +2 more
doaj   +1 more source

Nonlinear elasticity of silica nanofiber

open access: yesAPL Photonics, 2019
Optical nanofibers (ONFs) represent versatile nanophotonic platforms for important photonic applications such as optical sensing and quantum and nonlinear optics. The attractiveness of ONFs arises from the tight optical confinement, their wide evanescent
Adrien Godet   +5 more
doaj   +1 more source

DeepGreen: deep learning of Green’s functions for nonlinear boundary value problems

open access: yesScientific Reports, 2021
Boundary value problems (BVPs) play a central role in the mathematical analysis of constrained physical systems subjected to external forces. Consequently, BVPs frequently emerge in nearly every engineering discipline and span problem domains including ...
Craig R. Gin   +3 more
doaj   +1 more source

Nonlinear Elasticity of Monolayer Graphene [PDF]

open access: yesPhysical Review Letters, 2009
By combining continuum elasticity theory and tight-binding atomistic simulations, we work out the constitutive nonlinear stress-strain relation for graphene stretching elasticity and we calculate all the corresponding nonlinear elastic moduli. Present results represent a robust picture on elastic behavior of one-atom thick carbon sheets and provide the
CADELANO, EMILIANO   +3 more
openaire   +4 more sources

Nonlinear elasticity in biological gels [PDF]

open access: yesNature, 2005
Unlike most synthetic materials, biological materials often stiffen as they are deformed. This nonlinear elastic response, critical for the physiological function of some tissues, has been documented since at least the 19th century, but the molecular structure and the design principles responsible for it are unknown.
Storm, C.   +4 more
openaire   +4 more sources

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