Normalized life prediction in terms of stress relaxation behavior under creep–fatigue interaction

Jeong, Chang-Yeol; Choi, Baig-Gyu; Nam, Soo Woo

doi:10.1016/s0167-577x(00)00334-7

Cited by 17 publications

(16 citation statements)

References 9 publications

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“…At the same time the ductility is decreased. Heat treatment at temperatures from 200°C to 400°C after drawing improves the relaxation and creep of the wire (Williams and Waldron, 1990;Jeong, 2001).…”

Section: Literature Reviewmentioning

confidence: 99%

Process innovation in pre-stressed concrete wire using mechanical-based process simulator

Kess

Tong-In

Ayutthaya

et al. 2014

IJIL

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Steel wire quality is measured in terms of tensile strength, yield strength, elongation and relaxation. Minimum requirements for these specifications are defined by international standards. This research intends to assist in setting the steel wire machine by identifying the relationship and appropriate range among manufacturing process variables and parameters. By knowing these relationships, the setting up machine can be done in short time which leading to cost reduction and achieving quality standard. The results reveal that the treatment setting of temperature was the most significant variable followed by tension. In particular, the three mechanical properties of tensile strength, yield strength and elongation achieved when temperature set at 350°C. Mathematical models were derived for the effect of process variables on tensile strength, yield strength and relaxation. Response optimisation was used to find a composite solution to optimise the response variables simultaneously.Reference to this paper should be made as follows: Kess, P., Tong-In, D., Ayutthaya, P.S-n. and Anusornnitisarn, P. (2014) 'Process innovation in pre-stressed concrete wire using mechanical-based process simulator', Int.

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Section: Literature Reviewmentioning

confidence: 99%

Process innovation in pre-stressed concrete wire using mechanical-based process simulator

Kess

Tong-In

Ayutthaya

et al. 2014

IJIL

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“…Over the past several decades, the issue of accurately predicting HTLCF life of these hot section components has been an area of interest. Many life prediction methods have been reported [2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19][20][21]. However because of the complex damaging mechanisms involved, a unified model that can provide accurate life prediction for HTLCF does not exist [1].…”

Section: Introductionmentioning

confidence: 99%

“…To improve the accuracy of HTLCF life prediction, researchers have presented several models [14][15][16][17][18][19][20]. For example, considering the dynamic viscosity as the damage parameter to describe the flow behavior, Goswami [14] proposed the Ductility Exhaustion (DE) approach for HTLCF life prediction which is based on extensive research of CrMo steels.…”

Section: Introductionmentioning

confidence: 99%

“…For example, considering the dynamic viscosity as the damage parameter to describe the flow behavior, Goswami [14] proposed the Ductility Exhaustion (DE) approach for HTLCF life prediction which is based on extensive research of CrMo steels. Recently, with the assumption that the creep effect of stress relaxation leads to the reduction of fatigue life, Jeong [3,15] developed a stress relaxation range model (SRR). This model suggests that the relaxed stress range can be used as a creep-fatigue damage function and the Manson-Coffin curves under different conditions can be normalized to construct a master curve under strain controlled fatigue tests.…”

Section: Introductionmentioning

confidence: 99%

“…Their limitations can be summarized as follows: (a) some cannot accurately describe the effects of different loading waveforms, for example, LDS, FMMC and FMDF; (b) most of them ignore the effects of mean strain or mean stress on the fatigue life, such as LDS, FS, DRA, SRR [3,15], DE [14] and the models presented in [7,18]; (c) many of the existing models are not applicable under stress controlled conditions, for example, SRP and SEP, DE [14] and SRR [3,15]. The methods reported in [15][16][17] are limited to evaluation of HTLCF life under strain controlled conditions. In addition, many reported methods require specific types of tests to estimate the corresponding parameters or have too many "to be determined parameters or constants", thus restricting their usefulness, such as LDS, FS, SRP, SEP, DRA, GSEDF [19], models reported in [16] and DOA [20].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A New Ductility Exhaustion Model for High Temperature Low Cycle Fatigue Life Prediction of Turbine Disk Alloys

Zhu¹,

Huang

Li³

et al. 2011

International Journal of Turbo and Jet Engines

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Based on ductility exhaustion theory and the generalized energy-based damage parameter, a new viscosity-based life prediction model is introduced to account for the mean strain/stress effects in the low cycle fatigue regime. The loading waveform parameters and cyclic hardening effects are also incorporated within this model. It is assumed that damage accrues by means of viscous flow and ductility consumption is only related to plastic strain and creep strain under high temperature low cycle fatigue conditions. In the developed model, dynamic viscosity is used to describe the flow behavior. This model provides a better prediction of Superalloy GH4133's fatigue behavior when compared to Goswami's ductility model and the generalized damage parameter. Under non-zero mean strain conditions, moreover, the proposed model provides more accurate predictions of Superalloy GH4133's fatigue behavior than that with zero mean strains.

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Analysis of the fully-reversed creep-fatigue behavior with tensile-dwell periods of superalloy DZ445 at 900 °C

Ding

Ren

Zhong

et al. 2021

Engineering Fracture Mechanics

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Normalized life prediction in terms of stress relaxation behavior under creep–fatigue interaction

Cited by 17 publications

References 9 publications

Process innovation in pre-stressed concrete wire using mechanical-based process simulator

Process innovation in pre-stressed concrete wire using mechanical-based process simulator

A New Ductility Exhaustion Model for High Temperature Low Cycle Fatigue Life Prediction of Turbine Disk Alloys

Analysis of the fully-reversed creep-fatigue behavior with tensile-dwell periods of superalloy DZ445 at 900 °C

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