Numerical simulation for cracks detection using the finite elements method

Bennoud, Salim; Zergoug, M.; Allali, Ahmed

doi:10.1260/1750-9548.8.1.1

Cited by 9 publications

(9 citation statements)

References 13 publications

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“…Currently used NDT techniques in industrial applications are often quite expensive in terms of overall cost of the system (testing procedure, testing duration, equipment) and its operation (labor, expert staff) [30,31,32,33]. Therefore, it is imperative to introduce new robust NDT techniques for composite damage detection allowing for time and cost reduction [34].…”

Section: Vibrothermography For Nondestructive Testing Of Compositesmentioning

confidence: 99%

Multiphysics Study of Infrared Thermography (IRT) Applications

Zahra¹,

Malik²,

Hussain³

et al. 2020

IJM

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The paper reviews thermographic and vibrothermography applications such as cold climate operations, determine the temperature profile of steel samples under tensile testing and perform composites Non-Destructive Testing (NDT). This review paper discusses studies, where IR thermography has been used effectively in research and development projects at the UiT The Arctic University of Norway and AGH UST. The applications discussed in this work are to determine: • Thermal conductivity and heat transfer coefficient of freshwater and marine ice • An industrial solution for detecting icing • Relative required insulation (IREQ) of apparels • Variation of tensile strength and surface temperature of steel samples under tensile testing under cold temperatures • Vibrothermography for Non-Destructive Testing (NDT) of composites

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Section: Vibrothermography For Nondestructive Testing Of Compositesmentioning

confidence: 99%

Multiphysics Study of Infrared Thermography (IRT) Applications

Zahra¹,

Malik²,

Hussain³

et al. 2020

IJM

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“…) in equation (10). {b e } is the (nn×1) vector of contributions at the nodes of the element from the impressed current densities ( ), and {A e } is the (nn × 1) vector of unknown values of the magnetic vector potential at the nodes of the element.…”

Section: [S E ] Is the (Nn × Nn) Imaginary Part Of The Matrix Represementioning

confidence: 99%

“…The modeling and the simulations of (NDT-EC) using the numerical models of the finite element method (FEM) to establish codes able to solve Maxwell's equations have been developed in different papers in the latest years [7][8][9][10].…”

Section: Introductionmentioning

confidence: 99%

Simulation of Cracks Detection in Tubes by Eddy Current Testing

Bennoud

Zergoug²

2016

IJM

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“…Pennachi et al [11] developed a transverse crack identification program, which can detect crack depth and location by analyzing the vibration components of the rotor dynamic response. Bennoud et al [12] proposed a nondestructive testing method based on eddy currents to detect cracks. Chen [13] analyzed a tilted cracked rotor system with two disks by finite element model and simulated the time-varying stiffness caused by axial cracks.…”

Section: Introductionmentioning

confidence: 99%

A Study on Mode Shape and Natural Frequency of Rotating Flexible Cracked Annular Thin Disk

Zhao

Zhang

Jiang

2021

Shock and Vibration

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As an important rotating component, the flexible annular thin disk is widely used in mechanical engineering. Cracks may occur in some weak disk parts, which will greatly shorten the equipment service life and even cause equipment failure. Due to the centrosymmetric structure of the flexible annular disk, two typical cracks are studied in this paper; one is radial crack parallel to diameter, including radial closed crack (RC-crack) and radial opening crack (RO-crack); the other one is vertical crack perpendicular to diameter, including circumferential crack (CF-crack) and tangential crack (TG-crack). The effect of crack parameters, such as crack length, direction, and position, on disk vibration characteristics are studied through theoretical simulation and experimental verification. The research shows that the effect of cracks on vibration characteristic gets more obvious with cracks extending in most cases, RO-crack decreases the natural frequency obviously, and vertical cracks would affect mode shapes. In addition, the bigger the nodal diameter is, the more obvious the effect gets. Meanwhile, the most obvious effect appears in the mode of a nodal diameter locating on the crack. The research possesses some guiding significance in industrial production; by comparing with the vibration characteristics of the flawless disk, the integrity of the rotating flexible disk can be judged to prevent possible equipment damage.

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Numerical simulation for cracks detection using the finite elements method

Cited by 9 publications

References 13 publications

Multiphysics Study of Infrared Thermography (IRT) Applications

Multiphysics Study of Infrared Thermography (IRT) Applications

Simulation of Cracks Detection in Tubes by Eddy Current Testing

A Study on Mode Shape and Natural Frequency of Rotating Flexible Cracked Annular Thin Disk

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