Evaluation of Residual Stresses Using Optical Methods

Kostka, J.; Frankovský, Peter; Čarák, Peter; Neumann, Vojtech

doi:10.22306/am.v4i4.55

Cited by 2 publications

(1 citation statement)

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“…The p-value is the probability of obtaining a more extreme result if the null hypothesis is true. If the p-value is low (e.g., <=0.05), the alternative hypothesis will be more likely [19][20][21][22][23].…”

Section: Correlation Analysis and Regression Dependencies Testingmentioning

confidence: 99%

Rectification of Gas Pipeline Bridging with the Support of Experimental Stress Analysis and Means of Regression and Correlation Analysis

et al. 2022

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The paper deals with the connection between the issue of rectification of the structural system and the corresponding experimental and related statistical analysis of stresses. The solution was demonstrated in the example of replacing the aboveground gas pipeline with an underground solution. During the implementation of landscaping for the underground solution, there was a risk of damage to the existing structure. Due to the specific problems in stress analysis based on strain gauge measurements, especially with regard to the narrow range of gas pressure as the primary input quantity, the obtained data had to be subjected to complex statistical procedures. Several linear and non-linear regression models were compiled and subjected to normality, homoscedasticity, and autocorrelation tests. The data obtained in this manner ruled out the possibility of limited state occurrence on the existing structure and, in conjunction with other information, enabled the successful completion of the rectification process to its current form. The scientific added value of the contribution should be the demonstration of procedure methodology and relatively unconventional use of regression and correlation analysis methods and means in the technical field for stress analysis in solving engineering practice problems.

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Section: Correlation Analysis and Regression Dependencies Testingmentioning

confidence: 99%

Rectification of Gas Pipeline Bridging with the Support of Experimental Stress Analysis and Means of Regression and Correlation Analysis

et al. 2022

Self Cite

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Influence of pressure on the change of temperature inside the elastic element under dynamic stress

Krajňák,

Grega,

Puškár

2022

MATEC Web Conf.

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The article describes the change in temperature inside the elastic element when the pressure changes. These flexible elements are used in flexible pneumatic couplings developed at our workplace and are pressurized by a certain value of pressure depending on the transmitted torque. We test the given elements on a test rig designed at our workplace. It describes this device in detail in this article. On this device we test these elastic elements at different pressures. We find out how much influence the pressure value in the elastic element has on the change of temperature inside the element. We will find out whether the change in pressure also has a significant effect on the change in temperature and whether this temperature also affects the functionality of the device in which these elements are used.

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Evaluation of Residual Stresses Using Optical Methods

Cited by 2 publications

References 0 publications

Rectification of Gas Pipeline Bridging with the Support of Experimental Stress Analysis and Means of Regression and Correlation Analysis

Rectification of Gas Pipeline Bridging with the Support of Experimental Stress Analysis and Means of Regression and Correlation Analysis

Influence of pressure on the change of temperature inside the elastic element under dynamic stress

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