Analysis of Stress and Strain of Fatigue Specimens Localised in the Cross-sectional Area of the Gauge Section Testing on Bi-axial Fatigue Machine Loaded in the High-cycle Fatigue Region

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

doi:10.1016/j.proeng.2017.02.254

Cited by 20 publications

(20 citation statements)

References 7 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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“…Fig. 3 describes the output of simulation focused on the size of movements from each parts of the tool during cutting by the first assembly of punchers with bigger length [2,5,7,9].…”

Section: Fig 2 Description Of Cutting Forcementioning

confidence: 99%

“…From determined facts it is possible to state that the upper part of the tool during one cycle moves approximately 0.2-0.3 mm to the right side and then 0.4 -0.6 mm to the left. This movement causes high wear of the guiding elements and increases the size of shifting in the next cycles [4,6,9].…”

Section: Fig 2 Description Of Cutting Forcementioning

confidence: 99%

Identifying the cause of cutting tool failure by using simulation software

Zrak

Konar

2018

MATEC Web Conf.

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The article is focused on the construction problems of cutting tools designed for manufacturing components in high numbers. Analysis of the tool with low lifetime is provided with the use of simulation software to detect the causes of the tool failure. Parameters of the simulation are close to the real conditions of the tool in production. The results from the simulation indicate that the bending moment occurs in the tool because of forces which have opposite direction on different areas. On these basis technological adjustments are made. These adjustments are also analysed by using simulation software.

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“…The whole course of the velocity and acceleration for C, D, E, F points of bodies can be seen in Fig The main objective of the dynamic analysis is connected with specification of the loading for the individual items and determination of the courses relating to mutual reactions, referring to individual kinematic connections [7], [10][11] …”

Section: Fig 1 Planar Mechanism -Computational Modelmentioning

confidence: 99%

Kinematic and dynamic analysis and distribution of stress for six-item mechanism

Vavro¹,

Kováčiková²,

Híreš³

2018

MATEC Web Conf.

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Abstract. This paper presents a kinematic and dynamic analysis and distribution of the stress for six-item planar mechanism by means of the SolidWorks software. Graphic dependence of kinematic and dynamic magnitudes of some points is given in dependence on the angle of rotation of the driving item and in dependence on the time. Distribution of the stress in the items is presented in Pa. In relation to the kinematic and dynamic analysis and subsequent simulation of the planar as well as spatial mechanisms, it is great solution to use SolidWorks software program. The considerable advantage of this mentioned program is based on its simplicity from the aspect of modeling and moreover, it is important to point out that utilisation of the mentioned program leads to results which are precise and accurate in the case of the numerical solution of the equations in the whole magnitude referring to motion of mechanism while the given results are obtained in the graphic form.Keywords: kinematic analysis, dynamic analysis, finite element method, planar mechanism Kinematic and dynamic analysis of planar mechanismThe planar mechanism representative (Fig. 1) consists of six bodies and it was used as computational model. Using the kinematic analysis [4][5][6] and dynamic analysis and subsequent simulation [1][2][3], the main objective is connected with the determination and entering of the position domains, speed (velocity) domains as well as acceleration of the individual bodies in relation to the specified input values of the angular velocity for the driving body designated as 2. The angular velocity for the body, designated as 2, is specified in this way: ω 21 =1 °/s and α 21 =0.7 °/s 2 , where ω 21

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Analysis of Stress and Strain of Fatigue Specimens Localised in the Cross-sectional Area of the Gauge Section Testing on Bi-axial Fatigue Machine Loaded in the High-cycle Fatigue Region

Cited by 20 publications

References 7 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

Identifying the cause of cutting tool failure by using simulation software

Kinematic and dynamic analysis and distribution of stress for six-item mechanism

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