Exact closed-form solution for the vibration modes of the Euler–Bernoulli beam with multiple open cracks

S Caddemi, I Calio - Journal of Sound and Vibration, 2009 - Elsevier
In this study, exact closed-form expressions for the vibration modes of the Euler–Bernoulli
beam in the presence of multiple concentrated cracks are presented. The proposed …

[HTML][HTML] Multi-cracked Euler–Bernoulli beams: Mathematical modeling and exact solutions

S Caddemi, A Morassi - International journal of solids and structures, 2013 - Elsevier
Localized flexibility models of cracks enable one for simple and effective representation of
the behavior of damaged beams and frames. Important applications, such as the …

An existence and uniqueness result about algebras of Schwartz distributions

NC Dias, C Jorge, JN Prata - Monatshefte für Mathematik, 2024 - Springer
We prove that there exists essentially one minimal differential algebra of distributions A,
satisfying all the properties stated in the Schwartz impossibility result [L. Schwartz, Sur …

[HTML][HTML] One-dimensional Schrödinger operators with singular potentials: A Schwartz distributional formulation

NC Dias, C Jorge, JN Prata - Journal of Differential Equations, 2016 - Elsevier
Using an extension of the Hörmander product of distributions, we obtain an intrinsic
formulation of one-dimensional Schrödinger operators with singular potentials. This …

[HTML][HTML] Vibration modes of the Euler–Bernoulli beam equation with singularities

NC Dias, C Jorge, JN Prata - Journal of Differential Equations, 2024 - Elsevier
We consider the time dependent Euler–Bernoulli beam equation with discontinuous and
singular coefficients. Using an extension of the Hörmander product of distributions with non …

Square of the Dirac's delta distribution a new definition for engineering mechanics

A Ranjbaran - NED University Journal of Research, 2014 - go.gale.com
The analysis of cracked members is a paramount research interest in Civil, Mechanical and
Aerospace engineering. The Dirac's delta distribution and its square are used for modelling …

Foundations of the calculus of variations in generalized function algebras

S Konjik, M Kunzinger… - Acta Applicandae …, 2008 - Springer
We propose the use of algebras of generalized functions for the analysis of certain highly
singular problems in the calculus of variations. After a general study of extremal problems on …

Generalized solutions for the Euler–Bernoulli model with distributional forces

G Hörmann, L Oparnica - Journal of mathematical analysis and …, 2009 - Elsevier
We establish existence and uniqueness of generalized solutions to the initial–boundary
value problem corresponding to an Euler–Bernoulli beam model from mechanics. The …

Generalized solutions for the Euler–Bernoulli model with Zener viscoelastic foundations and distributional forces

G Hörmann, S Konjik, L Oparnica - Analysis and Applications, 2013 - World Scientific
We study the initial-boundary value problem for an Euler–Bernoulli beam model with
discontinuous bending stiffness laying on a viscoelastic foundation and subjected to an axial …

On application of theory of distributions to static and dynamic analysis of cracked beams

RO Grossi, JL Raffo - International Journal of Structural Stability and …, 2016 - World Scientific
This paper presents a rigorous study on the static and dynamic behavior of beams affected
by cracks. The theory of distributions developed by Laurent Schwartz is adopted as it is …