Deformation Mechanism of Thin and Medium-Thickness Cylinder and Its Collapse Strength under Bending
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Published:2020-06-01
Issue:3
Volume:1549
Page:032133
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ISSN:1742-6588
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Container-title:Journal of Physics: Conference Series
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language:
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Short-container-title:J. Phys.: Conf. Ser.
Author:
Cao Lihu,Dou Yihua,Liu Junyan,Li Mingfei,Zhang Wei
Abstract
Abstract
Considering the influence of flattening of casing cross-section on collapse, the stress equivalence principle was applied to conclude the triaxial stress and collapse strength. The method to determine casing collapse strength considering flattening of casing cross-section was established. The diameter-to-thickness ratio had a major influence on the flattening of the casing cross-section compared with curvature. For the 5 1/2”×7.72mm P110 casing, the flattening coursed by the 0.01/m curvature decreased the collapse strength concluded by API 5C3 by approximately 7.5%.
Subject
General Physics and Astronomy
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