Ratcheting behavior of pressurized elbow pipe at intrados under different loading paths

Caiming Liu; Dunji Yu; Waseem Akram; Yebin Cai; Xu Chen

doi:10.1016/j.tws.2019.02.013

Ratcheting behavior of pressurized elbow pipe at intrados under different loading paths

Caiming Liu, Dunji Yu, Waseem Akram, Yebin Cai, Xu Chen

Research output: Contribution to journal › Article › peer-review

25 Scopus citations

Abstract

This study examines the previous experimental results of ratcheting behavior of elbow pipe made of Z2CN18.10 austenitic stainless steel subjected to constant internal pressure and reversed in-plane bending by Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. A set of more precise CJK model parameters were determined. Based on the new model parameters, the evolutions of ratcheting behavior of pressurized elbow pipe were made under two sets of different loading paths. The paths consist of the alternation of internal pressure and bending moment, and bending-torsion combination under constant internal pressure. The preliminary results claim that different loading paths have a significant effect on ratcheting behavior of pressurized elbow pipe.

Original language	English
Pages (from-to)	293-301
Number of pages	9
Journal	Thin-Walled Structures
Volume	138
DOIs	https://doi.org/10.1016/j.tws.2019.02.013
State	Published - May 2019
Externally published	Yes

Funding

The authors gratefully acknowledge financial support for this work from the National Natural Science Foundation of China (No. 51435012 ).

Funders	Funder number
National Natural Science Foundation of China	51435012

Keywords

Cyclic plasticity
Elbow pipe
Finite element method
Load paths
Ratcheting behavior

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10.1016/j.tws.2019.02.013

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title = "Ratcheting behavior of pressurized elbow pipe at intrados under different loading paths",

abstract = "This study examines the previous experimental results of ratcheting behavior of elbow pipe made of Z2CN18.10 austenitic stainless steel subjected to constant internal pressure and reversed in-plane bending by Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. A set of more precise CJK model parameters were determined. Based on the new model parameters, the evolutions of ratcheting behavior of pressurized elbow pipe were made under two sets of different loading paths. The paths consist of the alternation of internal pressure and bending moment, and bending-torsion combination under constant internal pressure. The preliminary results claim that different loading paths have a significant effect on ratcheting behavior of pressurized elbow pipe.",

keywords = "Cyclic plasticity, Elbow pipe, Finite element method, Load paths, Ratcheting behavior",

author = "Caiming Liu and Dunji Yu and Waseem Akram and Yebin Cai and Xu Chen",

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doi = "10.1016/j.tws.2019.02.013",

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T1 - Ratcheting behavior of pressurized elbow pipe at intrados under different loading paths

AU - Liu, Caiming

AU - Yu, Dunji

AU - Akram, Waseem

AU - Cai, Yebin

AU - Chen, Xu

PY - 2019/5

Y1 - 2019/5

N2 - This study examines the previous experimental results of ratcheting behavior of elbow pipe made of Z2CN18.10 austenitic stainless steel subjected to constant internal pressure and reversed in-plane bending by Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. A set of more precise CJK model parameters were determined. Based on the new model parameters, the evolutions of ratcheting behavior of pressurized elbow pipe were made under two sets of different loading paths. The paths consist of the alternation of internal pressure and bending moment, and bending-torsion combination under constant internal pressure. The preliminary results claim that different loading paths have a significant effect on ratcheting behavior of pressurized elbow pipe.

AB - This study examines the previous experimental results of ratcheting behavior of elbow pipe made of Z2CN18.10 austenitic stainless steel subjected to constant internal pressure and reversed in-plane bending by Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. A set of more precise CJK model parameters were determined. Based on the new model parameters, the evolutions of ratcheting behavior of pressurized elbow pipe were made under two sets of different loading paths. The paths consist of the alternation of internal pressure and bending moment, and bending-torsion combination under constant internal pressure. The preliminary results claim that different loading paths have a significant effect on ratcheting behavior of pressurized elbow pipe.

KW - Cyclic plasticity

KW - Elbow pipe

KW - Finite element method

KW - Load paths

KW - Ratcheting behavior

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JO - Thin-Walled Structures

JF - Thin-Walled Structures

ER -

Ratcheting behavior of pressurized elbow pipe at intrados under different loading paths

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Keywords

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