Ratcheting Behavior of Pressurized Elbow Pipe under Different Loading Modes

Wei Qiang Qu; Xu Chen

doi:10.4028/www.scientific.net/AMM.853.322

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 853Ratcheting Behavior of Pressurized Elbow Pipe...

Ratcheting Behavior of Pressurized Elbow Pipe under Different Loading Modes

Abstract:

Ratcheting deformation is studied on elbow pipe made of Z2CND18.12N by FEM software. The simulation is conducted by ANSYS. Chen-Jiao-Kim (CJK) kinematic hardening model is added in ANSYS for the study. The elbow pipe is subjected to internal pressure and reversed in-plane bending. Internal pressure can be constant or cyclic. Many different loading paths are used in the study. Ratcheting deformations of under different ways are studied. The result shows that ratcheting deformation occurs mainly in the circumferential direction. Ratcheting deformation at the crown and intrados of elbow pipe is more notable because of higher stress. Tensile or compressed load can influence the position of dangerous point. It is found that ratcheting deformations under different paths with same peak load are different.

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Periodical:

Applied Mechanics and Materials (Volume 853)

Pages:

322-327

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.853.322

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Online since:

September 2016

Authors:

Wei Qiang Qu, Xu Chen*

Keywords:

Cyclic Loading, Elbow Piping, Ratcheting, Z2CND18.12

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References

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