Buckling phenomenon for straight and curved pipe under pure bending

Yudo, Hartono; Yoshikawa, Tomohiro

doi:10.1007/s00773-014-0254-5

Cited by 19 publications

(8 citation statements)

References 7 publications

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“…It happens when a force presses on a slender structure and makes it collapse. Under bending, the buckling strength of straight and curved pipes [4] was examined.…”

Section: Introductionmentioning

confidence: 99%

Study on the characteristics of pipe buckling strength under pure bending and external stress using nonlinear finite element analysis

Yudo

Amiruddin

Santosa

et al. 2021

J. Mechatron. Electr. Power Veh. Technol.

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Buckling and collapse are important failure modes for laying and operating conditions in a subsea position. The pipe will be subjected to various kinds of loads, i.e., bending moment, external pressure, and tension. Nonlinear finite element analysis was used to analyze the buckling strength of the pipe under pure bending and external pressure. The buckling of elastic and elasto-plastic materials was also studied in this work. The buckling strength due to external pressure had decreased and become constant on the long pipe when the length-to-diameter ratio (L/D) was increased. The non-dimensional parameter (β), which is proportionate to (D/t) (σy/E), is used to study the yielding influence on the buckling strength of pipe under combined bending and external pressure loading. The interaction curves of the buckling strength of pipe were obtained, with various the diameter-to-thickness ratio (D/t) under combination loads of external pressure and bending moment. For straight pipes L/D = 2.5 to 40, D = 1000 to 4000 mm, and D/t = 50 to 200 were set. The curved pipes D/t = 200, L/D =2.5 to 30 have been investigated by changing the radius of curvature-to-diameter ratio (R/D) from 50 to ∞, for each one. With decreasing R/D, the buckling strength under external pressure decreases slightly. This is in contrast to the bending of a curved pipe. When the value of R/D was decreased, the flexibility of the pipe was increased. However, the buckling strength of the pipe during bending was decreased due to the oval deformation at the cross-section.

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“…It happens when a force presses on a slender structure and makes it collapse. Under bending, the buckling strength of straight and curved pipes [4] was examined.…”

Section: Introductionmentioning

confidence: 99%

Study on the characteristics of pipe buckling strength under pure bending and external stress using nonlinear finite element analysis

Yudo

Amiruddin

Santosa

et al. 2021

J. Mechatron. Electr. Power Veh. Technol.

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“…To solve the equations, a numerical method based on the finite-difference approximations and NewtonRaphson iteration technique was developed. The buckling phenomenon for a straight pipe under a pure bending moment was studied by nonlinear FEA [26].…”

Section: Introductionmentioning

confidence: 99%

A new displacement-based solution for thick isotropic curved tubes

Sarvestani

Gorjipoor

2015

International Journal of Mechanical Sciences

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“…The investigation by authors (Yudo and Yoshikawa [4]) obtained the calculation results, the maximum moment for a long pipe considering oval deformation is shown as follows:…”

Section: Introductionmentioning

confidence: 99%

Analysis of the buckling moment on rectangular hollow pipe under pure bending load

2018

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Abstract. Not only the circle hollow pipe but also the rectangular hollow pipes are used on offshore structure. In this study, the bending moment was given at both end of pipe. The strength of buckling moment can be reduced by increasing the length. The rectangular pipe models are varying from a/b = 1, 2, 4; a/t = 10, 15, 20 and L/a = 10, 15, 20. On the rectangular pipe which is have larger rectangle area (a/b), have the larger deformation. Vice versa on the rectangular pipe which is have smaller rectangle area (a/b), as though on a/b = 2 and a/b = 4 which is have smaller deformation. The conclude that is the larger one of rectangle area then the oval deformation is large too. The buckling strength will increase with decreasing a/b and deformation at mid span will be increase. The buckling strength decrease with increasing of L/a and a/t. The strength of the buckling moment in the elastic state will decrease with increasing of a/t and a/b. For a/b = 1, the strength of buckling moment will tend to be equal at L/a = 10-20. Pipe with increasing of a/t, L/a and a/b will be elastic.

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Buckling phenomenon for straight and curved pipe under pure bending

Cited by 19 publications

References 7 publications

Study on the characteristics of pipe buckling strength under pure bending and external stress using nonlinear finite element analysis

Study on the characteristics of pipe buckling strength under pure bending and external stress using nonlinear finite element analysis

A new displacement-based solution for thick isotropic curved tubes

Analysis of the buckling moment on rectangular hollow pipe under pure bending load

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