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Title: | Evaluation of failure pressure for gas pipelines with combined defects |
Authors: | Vilkys, Tadas Rudzinskas, Vitalijus Prentkovskis, Olegas Tretjakovas, Jurijus Višniakov, Nikolaj Maruschak, Pavlo |
Keywords: | combined defect gas pipeline mechanical damage failure pressure ; finite element method |
Issue Date: | 2018 |
Publisher: | Multidisciplinary Digital Publishing Institute (MDPI AG) |
Citation: | Vilkys, T.; Rudzinskas, V.; Prentkovskis, O.; Tretjakovas, J.; Višniakov, N.; Maruschak, P. 2018. Evaluation of failure pressure for gas pipelines with combined defects, MDPI 8(5): 1-13 |
Series/Report no.: | 8;5 |
Abstract: | The paper presents the study of the influence of mechanical damage on the safe operation
of gas transmission pipelines. The main types of pipeline damage with the actual parameters and
their influence on the operational parameters are analysed. The damaged fractures of the section of
the pipeline Kaunas (Lithuania)–Kaliningrad (Russia) were investigated in the laboratory. The main
operational characteristics and the structure of the pipeline’s metal after the period of long-term
operation were determined using various research and experimental methods. The influence of
the pipeline’s damage was modelled by using the Finite Element Method and the ANSYS code.
The predictions of the failure pressure were made, taking into consideration the actual properties of
the pipeline’s metal. Techniques including the hardness and microhardness measurement, chemical
analysis, the impact strength test, and metallography analysis with an optical microscope, were used
in the experimental study |
URI: | http://dspace.vgtu.lt/handle/1/3754 |
ISSN: | 2075-4701 |
Appears in Collections: | Moksliniai straipsniai / Research articles
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