Vibrations of cracked beams: discrete mass and stiffness models

AC Neves, FMF Simões, AP Da Costa - Computers & Structures, 2016 - Elsevier
The present work aims at contributing to the characterization of the nonlinear dynamic
behavior of structures incorporating cracks. With this purpose, the Discrete Element Method …

On the mechanics of beams and shafts with cracks: A standard and generic approach

S El Arem - European Journal of Mechanics-A/Solids, 2021 - Elsevier
A generic methodology to deal with the mechanics of beams and shafts with cracks is
presented. The elastic energy of the system under static loading is written in a …

Nonlinear analysis, instability and routes to chaos of a cracked rotating shaft

S El Arem - Nonlinear Dynamics, 2019 - Springer
The aim of this paper is to explore the dynamical response of a rotating shaft with a cracked
transverse section. This complex problem is distilled down to the study of a very …

On a systematic approach for cracked rotating shaft study: breathing mechanism, dynamics and instability

S El Arem, M Ben Zid - Nonlinear dynamics, 2017 - Springer
We present a systematic approach to deal with the modelling and analysis of the cracked
rotating shafts behaviour. We begin by revisiting the problem of modelling the breathing …

A cracked beam finite element for rotating shaft dynamics and stability analysis

S El Arem, H Maitournam - Journal of Mechanics of Materials and …, 2008 - msp.org
In this paper, a method for the construction of a cracked beam finite element is presented.
The additional flexibility due to the cracks is identified from three-dimensional finite element …

Nonlinear dynamics of a rotating shaft with a breathing crack

S El Arem, QS Nguyen - Annals of Solid and Structural Mechanics, 2012 - Springer
In this paper, the effects of a breathing crack on the vibratory characteristics of a rotating
shaft are investigated. A new, simple and robust model composed of two rigid bars …

Shearing effects on the breathing mechanism of a cracked beam section in bi-axial flexure

S El Arem - European Journal of Mechanics-A/Solids, 2009 - Elsevier
The main purpose of this paper is to complete the works presented by Andrieux and Varé
(2002) and El Arem et al.(2003) by taking into account the effects of shearing in the …

An improved stiffness assessment of cracked steel beam and thick tube with a transverse crack

M Dougdag, O Mohammed… - International Journal of …, 2016 - journals.sagepub.com
For rotating machines maintenance and industrial inspection, cracking phenomena are
unpredictable events, since the occurrence of a crack and its growth are unavoidable during …

[PDF][PDF] On a systematic approach for cracked rotating shaft study

EL Saber, BEN Maha - core.ac.uk
We present a systematic approach to deal with the modeling and analysis of the cracked
rotating shafts behaviour. We begin by revisiting the problem of modelling the breathing …

On a systematic approach for cracked rotating shaft study: breathing mechanism, dynamics and instability

M BEN ZID, S EL AREM - 2017 - sam.ensam.eu
We present a systematic approach to deal with the modeling and analysis of the cracked
rotating shafts behaviour. We begin by revisiting the problem of modelling the breathing …