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National Repository of Grey Literature 2 records found  Search took 0.01 seconds. 
Parametric sensitivity analysis of the stress state in the crack-prone areas of breathing webs
 Kala, J. ; Kala, Z. ; Škaloud, Miroslav ; Teplý, B.
Within the framework of the Czech research on the cumulative damage process in, and the fatigue limit state of, steel plate girders under the action of many times repeated loading, the authors decided to perform a sensitivity analysis of the effect of initial imperfections on the state of stress in those areas of the breathing webs of the girders in which fastigue cracks develop under the effect of repeated loads. This paper describes a preparatory stage of the study; in whitch the theoretical apparatus needed is prepared, discussed and calibrated by way of comparing theoretical results obtained with the results of the tests carried out by one of the authors and his co-workers some time ago.
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Values of the results of the experimental investigation obtained from a stochastic analysis - the influence of the magnitude and shape of an initial imperfection of the steel beam slender web on its stress state
 Kala, Z. ; Kala, J. ; Teplý, B. ; Škaloud, Miroslav
In the paper, the results of sensitivity analysis of the influence of initial imperfections on the stress state of thin-walled girder are presented. Most input random quantitis were found experimentally. The stress was analysed by means of a geometrically and materially non-linear solution by applying the program ANSYS.
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