Results 101 to 110 of about 4,997 (268)

Pointwise conditions in discrete boundary value problems with nonlocal boundary conditions

Applied Mathematics Letters, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Experimental Modal Analysis‐Driven Gaussian Process Regression Modeling of Rectangular Steel Beams With Various Hole Geometries

International Journal of Mechanical System Dynamics, EarlyView.
ABSTRACT Understanding the dynamic behavior of structural components is crucial for optimizing performance and ensuring structural integrity. This study presents a new method that combines a systematic experimental investigation of four distinct hole geometries (circular, square, compact rectangular, and long rectangular) with varying hole counts, all ...
Amir Hossein Rabiee, Majid Rajaei, Mohammad Hossein Mahdavi Nasab, Parsa Shafiei   +3 more
wiley   +1 more source

Configurational Energy as a Microstructural Descriptor of Failure Precursors in 2D Frictional Granular Materials

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Localized deformation in dense granular materials, often culminating in the formation of shear bands, is a key failure mechanism in geotechnical and material systems. However, predicting the onset of such localization remains a fundamental challenge due to the system's inherent inelasticity and microstructural complexity.
Zhennan Zhu, Francois Nicot, Antoine Wautier, Klaus Regenauer‐lieb, Manman Hu   +4 more
wiley   +1 more source

Torsional vibration of cracked carbon nanotubes with torsional restraints using Eringen’s nonlocal differential model

Journal of Low Frequency Noise, Vibration and Active Control, 2019
Free torsional vibration of cracked carbon nanotubes with elastic torsional boundary conditions is studied. Eringen’s nonlocal elasticity theory is used in the analysis. Two similar rotation functions are represented by two Fourier sine series.
Mustafa Ö Yayli, Suheyla Y Kandemir, Ali E Çerçevik   +2 more
doaj   +1 more source

A Peridynamic Framework for Modeling Progressive Failure in Porous Sandstone Indentation

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT A state‐based peridynamic model is proposed to simulate the failure mechanisms in porous rocks, using Bentheim sandstone as a specific example. Experimental observations reveal a transition from brittle to ductile failure under increasing triaxial compression. This behavior is attributed to pore compaction. The peridynamic model is enhanced to
Sahir N. Butt, Jörg Renner, Günther Meschke   +2 more
wiley   +1 more source

Positive solutions of a boundary value problem with integral boundary conditions

Electronic Journal of Differential Equations, 2011
We consider boundary-value problems studied in a recent paper. We show that some existing theory developed by Webb and Infante applies to this problem and we use the known theory to show how to find improved estimates on parameters $mu^*, lambda ...
Jeff R. L. Webb
doaj  

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

Latin 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

Reverse Space‐Time Nonlocal Sine‐Gordon/Sinh‐Gordon Equations with Nonzero Boundary Conditions [PDF]

, 2018
Mark J. Ablowitz, Bao‐Feng Feng, Xu‐Dan Luo, Ziad H. Musslimani   +3 more
openalex   +1 more source

Polymer‐Assisted Direct and Rapid Microwave Synthesis of Mesoporous Binary and Ternary Metal Oxides for Electrocatalytic Water Oxidation

Small, EarlyView.
A novel direct and facile microwave synthesis route to prepare mesoporous binary and ternary metal oxides with P‐123® as porogen is presented. NiFe2O4 is applied in alkaline Oxygen Evolution Reaction (OER) and shows improved performance in comparison to nanoparticular and Evaporation Induced Self‐Assembly (EISA)‐derived mesoporous NiFe2O4.
Jasmin Helgert, Jana Timm, Lion Schumacher, Roland Marschall   +3 more
wiley   +1 more source

Nonlocal problems for hyperbolic equations from the viewpoint of strongly regular boundary conditions

Electronic Journal of Differential Equations, 2020
In this article, we consider a nonlocal problem for hyperbolic equation with integral conditions and show their close connection with the notion of strongly regular boundary conditions.
Ludmila S. Pulkina
doaj