National Repository of Grey Literature 3 records found  Search took 0.06 seconds. 
An engineering method for assessing the strength of damaged pressure vessels
Gajdoš, Lubomír ; Šperl, Martin
On the basis of long research into the structural integrity of high pressure gas pipelines and the theoretical and experimental results, the authors have prepared a simple engineering method for assesing the integrity of cylindrical shells containing longitudinal part-through cracks in the wall.
Influence of Recurrent Overloading on the Integrity of Gas Pipes
Gajdoš, Lubomír ; Šperl, Martin
During hydrostatic tests of gas pipelines the tested pipeline sections are also subjected to recurrent overloading depending on the type and purpose of the test. Recurrent overloading of older piping in operation, in the walls of which the occurrence of cracks cannot be excluded, may be surrounded by some uncertainties as regards their integrity, which may be damaged. On the basis of experimental results obtained on a gas pipe with artificially generated fatigue cracks the authors analysed (from the position of the latest knowledge of fracture mechanics) the conditions that result in the bursting of the ligament in front of the crack tip during recurrent overloading, and discuss the potential mechanisms of reduced fracture pressure during recurrent overloading.
Corrosion fatigue of steel L485MB
Gajdoš, Lubomír ; Šperl, Martin ; Brož, P.
To assess the resistance of a high-level steel L485MB to corrosion fatigue its fatigue properties were investigated in air, acidic corrosive medium, alkaline corrosive medium, and the fresh water.

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