A Plastic Strain and Stress Analysis of Bending and Torsion Fatigue Specimens in the Low-cycle Fatigue Region Using the Finite Element Methods

Kopas, Peter; Sága, Milan; Baniari, Vladislav; Vaško, Milan; Handrik, Marián

doi:10.1016/j.proeng.2017.02.256

Cited by 24 publications

(20 citation statements)

References 6 publications

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“…The entire set consisting from all three types of wavenumbers can be for given material parameters and frequency range with reasonable division obtained within 20 seconds. Currently, authors are working on development of more time-efficient algorithm in order to apply the results with cooperation of Lamb wave structural health monitoring for various experiments [11][12][13][14][15][16] and also for further application in case of composite structures [17]. …”

Section: Resultsmentioning

confidence: 99%

Numerical solution of Rayleigh-Lamb frequency equation for real, imaginary and complex wavenumbers

2018

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Abstract. Guided waves, especially Lamb waves or shear-horizontal waves, are widely used types of waves for ultrasonic inspection of large structures. Well known property of guided waves is their dispersive character, which means that the propagation velocity of the particular wave mode is not only a function of physical properties of the material, in which the wave propagates or the wave´s frequency, but also depends on the geometry of the structure in itself. Dispersion curves provide us the information related to the dependency between the wavenumber and the frequency of the particular mode and can be obtained by a numerical solution of Rayleigh-Lamb frequency equation. A solution of Rayleigh-Lamb frequency equation forms for a given frequency and plate thickness a set of a finite number of real and pure imaginary wavenumbers and an infinite number of complex wavenumbers. Proposed paper presents a complete procedure of how to obtain all three kinds of wavenumbers for a given geometry and frequency interval. The main emphasis is placed on the effectiveness of the procedures, which are used for finding the roots of dispersion equation for all three kinds of wavenumbers.

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Section: Resultsmentioning

confidence: 99%

Numerical solution of Rayleigh-Lamb frequency equation for real, imaginary and complex wavenumbers

2018

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“…This problem is looked at from the viewpoint of the FEM analysis, rather than classic reverse engineering. [5][6][7][8]. Classic reverse engineering needs to create the volume CAD model because it is used for other applications, not only for the the FEM analysis.…”

Section: Discussionmentioning

confidence: 99%

Realization and Verification of Data Conversion from Laser Scanner to FEM

Sapietová¹,

Štalmach²,

Sága³

et al. 2020

Adv. Sci. Technol. Res. J.

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This paper deals with the data processing in the form of a point cloud scanned using a handheld 3D laser scanner. The aim of the paper was to use this data to create a representative FEM model and compare two different approaches, one them involved creating a CAD model and the other one did not. The data processing was carried out in the freeware systems MeshLab and Meshmixer and FEM analysis in the software ANSYS Workbench.

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“…After defining parameters and setting-up the FE model of the structure there is possibly to perform analyses. Then, it is necessary to switch the programme to the module Post-Processing, in which all results of analyses are presented and evaluated [5,8].…”

Section: Strength Analyses Of Main Load-bearing Parts Using Femmentioning

confidence: 99%

Engineering design and strength analyses of main load-bearing parts of a mechanical rack system

Blatnický¹,

Dižo²,

Bárta³

et al. 2018

Diagnostyka

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This article presents an engineering design of a mechanical rack system along with strength analyses of its main load-bearer parts. The designed mechanical rack system is intended to be mounted in a production hall for storage of rod material with total length of 6 m. The whole structure of this equipment is welded and made of steel profiles. It consists of a main load-bearing part, which comprises a central beam and horizontal beams and four draw-out shelves on each side, which are arranged four levels. Every individual shelve is able to carry the mass of 3.0 t. As the solved rack system is not standardized but designed in compliance with specific requirements of a customer, we had to support the structure carrying capacity with strength calculations. Structural calculations were realized by means of numeric finite element method. Strength analyses were performed for the maximum load cases.

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A Plastic Strain and Stress Analysis of Bending and Torsion Fatigue Specimens in the Low-cycle Fatigue Region Using the Finite Element Methods

Cited by 24 publications

References 6 publications

Numerical solution of Rayleigh-Lamb frequency equation for real, imaginary and complex wavenumbers

Numerical solution of Rayleigh-Lamb frequency equation for real, imaginary and complex wavenumbers

Realization and Verification of Data Conversion from Laser Scanner to FEM

Engineering design and strength analyses of main load-bearing parts of a mechanical rack system

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