Justification of choice of corrosion-resistant material of blowout preventer body based on modeling of its elastic-plastic deformation
The paper considers a method for justifying the choice of a corrosion-resistant material for the manufacture of a blowout preventer body based on computer simulation of an elastic-plastic task in the ANSYS Mechanical APDL software. To describe the material properties, a multilinear deformation...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Omsk State Technical University, Federal State Autonoumos Educational Institution of Higher Education
2022-11-01
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| Series: | Омский научный вестник |
| Subjects: | |
| Online Access: | https://www.omgtu.ru/general_information/media_omgtu/journal_of_omsk_research_journal/files/arhiv/2022/%E2%84%96%204%20(184)%20(%D0%9E%D0%9D%D0%92)/5-11%20%D0%A1%D1%8B%D0%B7%D1%80%D0%B0%D0%BD%D1%86%D0%B5%D0%B2%D0%B0%20%D0%9A.%20%D0%92.,%20%D0%9A%D1%83%D1%81%D0%BA%D0%BE%D0%B2%20%D0%9A.%20%D0%92.,%20%D0%9F%D0%B0%D0%B7%D1%8F%D0%BA%20%D0%9C.%20%D0%90..pdf |
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| Summary: | The paper considers a method for justifying the choice
of a corrosion-resistant material for the manufacture of
a blowout preventer body based on computer simulation
of an elastic-plastic task in the ANSYS Mechanical APDL
software. To describe the material properties, a multilinear
deformation model is used, the reference points of which
are calculated as a result of working out the macro
developed by the authors based on two models: RambergOsgood and the “method of sequential corrections”
proposed by TSAGI specialists. The paper presents the
results of computer simulation on the loading of the
PShKM-ASMT-114x21 preventer body by working and
double starting pressure for four variants of body materials.
The calculations confirmed the high safety factor of the
body for the currently used 40X steel showed sufficient
working capacity of corrosion-resistant steels 20X13 and
30XMA. However, a computer experiment detected very
extensive zones and the level of plastic strains as a result
of loading the body made of 12X18H10T steel with double
starting pressure. The obtained results indicate that the
investigated preventer can be manufactured in corrosionresistant versions K1 and K2, but for the execution of
K3 it is necessary to develop a fundamentally different
geometry of the body. |
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| ISSN: | 1813-8225 2541-7541 |