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Deterministic Processing of Complex Multiaxial Fatigue Load Data on a Tubular Specimen with Hole
A study of use deterministic fatigue life prediction methods for a set of multiaxial experimental data on broad-band random loading to a tubular specimen with a hole is presented. There is a discussion of the applicability of stress-based predictions...
JL - Únava materiálu a lomová mechanika
- 2012 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Fatigue life prediction for broad-band multiaxial loading with various PSD curve shapes
The fatigue calculation analysed here applies the Power Spectral Density function of the equivalent stress together with the known spectral method for estimating the probability density function of stress amplitudes included in random loading.Here th...
JL - Únava materiálu a lomová mechanika
- 2012 •
- Jx •
- Link
Rok uplatnění
Jx - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)
Výsledek na webu
Comparison of usual and energy approaches for assessments of fatigue lives
The contribution deals with seeking of links between fatigue lives of parts under harmonic and random loadings. Two different approaches are compared. The first starts from assumption of equal times to failure under equal standard deviations of both ...
JL - Únava materiálu a lomová mechanika
- 2011 •
- D
Rok uplatnění
D - Stať ve sborníku
Utilization of spectral properties to estimate the life of structurs under combined random loading
Within solution of the grant GAČR 101/09/0904 of ČVUT praha and ÚT AVČR, v.v, we tried to find a new approach to solve the above issue which would be based on finding links between spectral properties of individual loading process components and the ...
JL - Únava materiálu a lomová mechanika
- 2011 •
- O
Rok uplatnění
O - Ostatní výsledky
Fatigue analysis of bogie tow bars on subway wagon.
The metro wagon bogie tow bar consists of three main parts; the central tube part and two lugs. These parts are welded to each other. Metro tow bars cracks had appeared during the operation on the wagons near the welds. Metro operator assigned the ex...
JL - Únava materiálu a lomová mechanika
- 2011 •
- O
Rok uplatnění
O - Ostatní výsledky
Evaluation of uniaxial fatigue criteria applied on multiaxially loaded unnotched samples
Several multiaxial fatigue criteria have been developed and improved along the last couple of decades, nevertheless their industrial application is not as widespread as it might be. Many engineers and designers still use simple uniaxial criteria for ...
JL - Únava materiálu a lomová mechanika
- 2011 •
- D
Rok uplatnění
D - Stať ve sborníku
LOADING PROCESSES WITH VARIOUS SPECTRAL PROPERTIES FOR FATIGUE TESTS
The paper describes methods used for generating of gaussian processes with prescribed spectral densities and their implementation on electro-hydraulic testing machines for combined loading. Tube specimens were loaded by random forces and in torque by...
JL - Únava materiálu a lomová mechanika
- 2011 •
- O
Rok uplatnění
O - Ostatní výsledky
Metro Wagon Bogie Tow Bars Fatigue
The metro wagon bogie tow bar consists of three main parts - the central tube part and two lugs. These parts are welded to each other. Metro tow bars cracks had appeared during the operation on the wagons near the welds. Metro operator assigned the e...
JL - Únava materiálu a lomová mechanika
- 2011 •
- D
Rok uplatnění
D - Stať ve sborníku
Measrement of Plastic Deformation using FBG Sensors
Strain gauges are not very good for measuring high level of deformation during cyclic loading. Article describes usage of FBG sensors when the main advantage of these sensors is their non sensitivity to the electromagnetic field, and potential for hi...
JB - Senzory, čidla, měření a regulace
- 2011 •
- D
Rok uplatnění
D - Stať ve sborníku
Multiaxial Fatigue Limit Evaluation by Criteria Based on von Mises Stress
The paper focuses on the evaluation of the set of experiments gathered in the FatLim database (www.pragtic.com/fatlim.php). The experimental results there are fatigue limits under multiaxial or uniaxial loading including mean loads. A set of carefull...
JL - Únava materiálu a lomová mechanika
- 2011 •
- D
Rok uplatnění
D - Stať ve sborníku
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