Results 1 to 10 of about 5,831,128 (302)

Complex Potentials and Integral Equations for Thermoelasticity Problem of Orthotropic Cracked Plate [PDF]

open access: yesInternational Journal of Mathematical, Engineering and Management Sciences, 2022
In the present article, the plane thermoelasticity problem of an infinite orthotropic cracked plate, is studied. The interaction between thermal and mechanical field, in a plate containing a crack and a heat source is investigated. The plate is submitted
Panagiota Lalou   +1 more
doaj   +1 more source

Revisiting classical concepts of Linear Elastic Fracture Mechanics - Part I: The closing �mathematical� crack in an infinite plate and the respective Stress Intensity Factors

open access: yesFracture and Structural Integrity, 2023
This is the first part of a short three-paper series, aiming to revisit some classical concepts of Linear Elastic Fracture Mechanics. The motive of this first paper is to highlight some controversial issues, related to the unnatural overlapping of the ...
Christos F. Markides   +1 more
doaj   +1 more source

Bending by Concentrated Force of a Cantilever Strip Having a Through-thickness Crack Perpendicular to Its Axis

open access: yesApplied Sciences, 2020
The article focuses on the bending problem for a cantilever beam with a straight through-thickness crack, perpendicular to its axis under bending by concentrated force.
Mykhaylo Delyavskyy   +2 more
doaj   +1 more source

Second-Order Multiparameter Problems Containing Complex Potentials

open access: yesAxioms, 2022
In this work, we provide some lower bounds for the number of squarly integrable solutions of some second-order multiparameter differential equations. To obtain the results, we use both Sims and Sleeman’s ideas and the results are some generalization of ...
Ibrahim Erdal, Ekin Uğurlu
doaj   +1 more source

A New Approach to Non-Singular Plane Cracks Theory in Gradient Elasticity

open access: yesMathematical and Computational Applications, 2019
A non-local solution is obtained here in the theory of cracks, which depends on the scale parameter in the non-local theory of elasticity. The gradient solution is constructed as a regular solution of the inhomogeneous Helmholtz equation, where the ...
Sergey A. Lurie   +2 more
doaj   +1 more source

Revisiting the Reflected Caustics Method: the Accurate Shape of the “Initial Curve”

open access: yesEngineering Transactions, 2013
The shape of the “initial curve”, i.e. the locus of material points, which if properly illuminated provide (under specific conditions) the “caustic curve”, is explored.
Christos F. MARKIDES   +1 more
doaj   +1 more source

Late ventricular potentials in risk assessment of the occurrence of complex ventricular arrhythmia in patients with myocardial infarction and heart failure [PDF]

open access: yesVojnosanitetski Pregled, 2004
Aim. To determine the prognostic significance of late ventricular potentials on signal-averaged electrocardiogram and left ventricular ejection fraction for the occurrence of complex ventricular arrhythmia in patients treated with accelerated tissue-type
Ćosić Zoran   +3 more
doaj   +1 more source

Jamming anomaly in -symmetric systems

open access: yesNew Journal of Physics, 2016
The Schrödinger equation with a ${ \mathcal P }{ \mathcal T }$ -symmetric potential is used to model an optical structure consisting of an element with gain coupled to an element with loss. At low gain–loss amplitudes γ , raising the amplitude results in
I V Barashenkov   +2 more
doaj   +1 more source

Stresses and Displacements in an Elliptically Perforated Circular Disc Under Radial Pressure

open access: yesEngineering Transactions, 2014
The complex potentials governing the elastic equilibrium of a finite circular disc, elliptically perforated at its center, are obtained using Muskhelishvili’s formulation.
Christos F. MARKIDES   +1 more
doaj   +1 more source

Complex Tasks: Potentials and Pitfalls

open access: yesMathematics, 2020
Life in today’s world is characterized by complexity and rapid change. Twenty-first century skills and especially mathematical understanding are supposed to crucially contribute to meeting the demands of our world since mathematics offers strategies to ...
Nina Bohlmann, Ralf Benölken
doaj   +1 more source

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