Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters

Min Gu Won; Nam Su Huh; Hyeong Yeon Lee; Woo Gon Kim; Jae Boong Choi

doi:10.1115/PVP2017-65689

Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters

Min Gu Won, Nam Su Huh, Hyeong Yeon Lee, Woo Gon Kim, Jae Boong Choi

Dept. of Mechanical System and Design Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

2 Scopus citations

Abstract

The present paper investigates the effect of creep deformation model of Gr. 91 Steel at 600°C on creep fracture mechanics parameters. Three types of creep deformation model were considered, i.e. Garofalo's model and RCC-MRx model for primary-secondary creep region, and modified omega model for primary-secondary-tertiary creep region. The parameters for each creep deformation model were characterized fro m experiment results. Reference Stress (RS) method was used to estimate creep fracture mechanics parameters, C(t)-integral and COD rate for each creep model. Furthermore, elastic-creep finite element (FE) analyses were carried out to verify the results of RS method. Finally, the effect of creep deformation model was investigated by comparing the results of C(t)-integral and COD rate.

Original language	English
Title of host publication	Materials and Fabrication
Publisher	American Society of Mechanical Engineers (ASME)
ISBN (Electronic)	9780791857991
DOIs	https://doi.org/10.1115/PVP2017-65689
State	Published - 2017
Event	ASME 2017 Pressure Vessels and Piping Conference, PVP 2017 - Waikoloa, United States Duration: 16 Jul 2017 → 20 Jul 2017

Publication series

Name	American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
Volume	6A-2017
ISSN (Print)	0277-027X

Conference

Conference	ASME 2017 Pressure Vessels and Piping Conference, PVP 2017
Country/Territory	United States
City	Waikoloa
Period	16/07/17 → 20/07/17

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10.1115/PVP2017-65689

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Won, M. G., Huh, N. S., Lee, H. Y., Kim, W. G., & Choi, J. B. (2017). Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters. In Materials and Fabrication (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6A-2017). American Society of Mechanical Engineers (ASME). https://doi.org/10.1115/PVP2017-65689

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title = "Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters",

abstract = "The present paper investigates the effect of creep deformation model of Gr. 91 Steel at 600°C on creep fracture mechanics parameters. Three types of creep deformation model were considered, i.e. Garofalo's model and RCC-MRx model for primary-secondary creep region, and modified omega model for primary-secondary-tertiary creep region. The parameters for each creep deformation model were characterized fro m experiment results. Reference Stress (RS) method was used to estimate creep fracture mechanics parameters, C(t)-integral and COD rate for each creep model. Furthermore, elastic-creep finite element (FE) analyses were carried out to verify the results of RS method. Finally, the effect of creep deformation model was investigated by comparing the results of C(t)-integral and COD rate.",

author = "Won, \{Min Gu\} and Huh, \{Nam Su\} and Lee, \{Hyeong Yeon\} and Kim, \{Woo Gon\} and Choi, \{Jae Boong\}",

year = "2017",

doi = "10.1115/PVP2017-65689",

language = "English",

series = "American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP",

publisher = "American Society of Mechanical Engineers (ASME)",

booktitle = "Materials and Fabrication",

}

Won, MG, Huh, NS, Lee, HY, Kim, WG & Choi, JB 2017, Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters. in Materials and Fabrication. American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP, vol. 6A-2017, American Society of Mechanical Engineers (ASME), ASME 2017 Pressure Vessels and Piping Conference, PVP 2017, Waikoloa, United States, 16/07/17. https://doi.org/10.1115/PVP2017-65689

Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters. / Won, Min Gu; Huh, Nam Su; Lee, Hyeong Yeon et al.
Materials and Fabrication. American Society of Mechanical Engineers (ASME), 2017. (American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP; Vol. 6A-2017).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

TY - GEN

T1 - Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters

AU - Won, Min Gu

AU - Huh, Nam Su

AU - Lee, Hyeong Yeon

AU - Kim, Woo Gon

AU - Choi, Jae Boong

PY - 2017

Y1 - 2017

N2 - The present paper investigates the effect of creep deformation model of Gr. 91 Steel at 600°C on creep fracture mechanics parameters. Three types of creep deformation model were considered, i.e. Garofalo's model and RCC-MRx model for primary-secondary creep region, and modified omega model for primary-secondary-tertiary creep region. The parameters for each creep deformation model were characterized fro m experiment results. Reference Stress (RS) method was used to estimate creep fracture mechanics parameters, C(t)-integral and COD rate for each creep model. Furthermore, elastic-creep finite element (FE) analyses were carried out to verify the results of RS method. Finally, the effect of creep deformation model was investigated by comparing the results of C(t)-integral and COD rate.

AB - The present paper investigates the effect of creep deformation model of Gr. 91 Steel at 600°C on creep fracture mechanics parameters. Three types of creep deformation model were considered, i.e. Garofalo's model and RCC-MRx model for primary-secondary creep region, and modified omega model for primary-secondary-tertiary creep region. The parameters for each creep deformation model were characterized fro m experiment results. Reference Stress (RS) method was used to estimate creep fracture mechanics parameters, C(t)-integral and COD rate for each creep model. Furthermore, elastic-creep finite element (FE) analyses were carried out to verify the results of RS method. Finally, the effect of creep deformation model was investigated by comparing the results of C(t)-integral and COD rate.

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DO - 10.1115/PVP2017-65689

M3 - Conference contribution

AN - SCOPUS:85034077844

T3 - American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP

BT - Materials and Fabrication

PB - American Society of Mechanical Engineers (ASME)

T2 - ASME 2017 Pressure Vessels and Piping Conference, PVP 2017

Y2 - 16 July 2017 through 20 July 2017

ER -

Effects of creep deformation model of Gr. 91 steel at 600°C on creep fracture mechanics parameters

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