Relationship between shear strength and surface roughness of double-layered pipes by cold drawing
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Published:2021-02-09
Issue:1
Volume:12
Page:123-131
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ISSN:2191-916X
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Container-title:Mechanical Sciences
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language:en
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Short-container-title:Mech. Sci.
Author:
Ahn Moktan,Park Joonhong
Abstract
Abstract. Pipes applied to marine plants are used in deep-sea
environments; therefore, they must be resistant to high pressure and corrosion.
Because it is difficult to satisfy both of these factors in a single pipe,
studies on a double-layered pipe are continuously being performed. An outer
pipe should be made of carbon steel, with high pressure resistance, and an
inner pipe should be made of stainless steel, with high corrosion
resistance. A pipe formed by combining these two pipes is called a lined
pipe. The shear strength of the lined pipe is an important factor because
pipe cracking can occur due to stress concentration when two pipes are
separated by bending or high pressure. Therefore, various processes have
been applied to increase the shear strength. In this paper, we investigate
the effect of the surface roughness of the bonding interface on the shear
strength. Surface roughness is in units of micrometers, and it cannot be used for finite element method (FEM) analysis. Therefore, surface roughness should be converted into a
friction coefficient to perform FEM analysis. The effect of surface
roughness on shear strength was studied in the relationship between the
results of pressure from FEM analysis and the shear strength test.
Publisher
Copernicus GmbH
Subject
Industrial and Manufacturing Engineering,Fluid Flow and Transfer Processes,Mechanical Engineering,Mechanics of Materials,Civil and Structural Engineering,Control and Systems Engineering
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