Thermal aging effect on the ratcheting behavior of pressurized elbow pipe

Caiming Liu; Dunji Yu; Waseem Akram; Xu Chen

doi:10.1115/1.4039073

Thermal aging effect on the ratcheting behavior of pressurized elbow pipe

Caiming Liu, Dunji Yu, Waseem Akram, Xu Chen

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

12 Scopus citations

Abstract

In this study, the ratcheting behaviors of pressurized Z2CN18.10 austenitic stainless steel elbow pipe influenced by the thermal aging process were experimentally investigated in controlled constant internal pressure and reversed in-plane bending after different thermal aging periods (1000 h and 2000 h) at thermal aging temperature of 500 C. It is shown that the ratcheting behavior of pressured elbow pipe is highly affected by the thermal aging process. The evaluation of ratcheting behavior of pressured elbow pipe was performed using Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. The relationships of yield stress rs and multiaxial parameter v with thermal aging time were proposed. Ratcheting shakedown boundary of aged elbow pipe was evaluated by CJK model with thermal aging time.

Original language	English
Article number	21604
Journal	Journal of Pressure Vessel Technology, Transactions of the ASME
Volume	140
Issue number	2
DOIs	https://doi.org/10.1115/1.4039073
State	Published - Apr 1 2018
Externally published	Yes

Funding

• National Natural Science Foundation of China (Grant No. 51435012).

Funders	Funder number
National Natural Science Foundation of China	51435012

Keywords

Thermal aging
cyclic plasticity
elbow pipe
finite element method
ratcheting

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10.1115/1.4039073

Cite this

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title = "Thermal aging effect on the ratcheting behavior of pressurized elbow pipe",

abstract = "In this study, the ratcheting behaviors of pressurized Z2CN18.10 austenitic stainless steel elbow pipe influenced by the thermal aging process were experimentally investigated in controlled constant internal pressure and reversed in-plane bending after different thermal aging periods (1000 h and 2000 h) at thermal aging temperature of 500 C. It is shown that the ratcheting behavior of pressured elbow pipe is highly affected by the thermal aging process. The evaluation of ratcheting behavior of pressured elbow pipe was performed using Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. The relationships of yield stress rs and multiaxial parameter v with thermal aging time were proposed. Ratcheting shakedown boundary of aged elbow pipe was evaluated by CJK model with thermal aging time.",

keywords = "Thermal aging, cyclic plasticity, elbow pipe, finite element method, ratcheting",

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

note = "Publisher Copyright: {\textcopyright} 2018 by ASME.",

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doi = "10.1115/1.4039073",

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AU - Liu, Caiming

AU - Yu, Dunji

AU - Akram, Waseem

AU - Chen, Xu

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N2 - In this study, the ratcheting behaviors of pressurized Z2CN18.10 austenitic stainless steel elbow pipe influenced by the thermal aging process were experimentally investigated in controlled constant internal pressure and reversed in-plane bending after different thermal aging periods (1000 h and 2000 h) at thermal aging temperature of 500 C. It is shown that the ratcheting behavior of pressured elbow pipe is highly affected by the thermal aging process. The evaluation of ratcheting behavior of pressured elbow pipe was performed using Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. The relationships of yield stress rs and multiaxial parameter v with thermal aging time were proposed. Ratcheting shakedown boundary of aged elbow pipe was evaluated by CJK model with thermal aging time.

AB - In this study, the ratcheting behaviors of pressurized Z2CN18.10 austenitic stainless steel elbow pipe influenced by the thermal aging process were experimentally investigated in controlled constant internal pressure and reversed in-plane bending after different thermal aging periods (1000 h and 2000 h) at thermal aging temperature of 500 C. It is shown that the ratcheting behavior of pressured elbow pipe is highly affected by the thermal aging process. The evaluation of ratcheting behavior of pressured elbow pipe was performed using Chen-Jiao-Kim (CJK) kinematic hardening model as a user subroutine of ANSYS. The relationships of yield stress rs and multiaxial parameter v with thermal aging time were proposed. Ratcheting shakedown boundary of aged elbow pipe was evaluated by CJK model with thermal aging time.

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Thermal aging effect on the ratcheting behavior of pressurized elbow pipe

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