Effective stress and fatigue life prediction with mean stress correction models on a ferritic stainless steel sheet

Oh, Gyoko

doi:10.1016/j.ijfatigue.2021.106707

Cited by 16 publications

(3 citation statements)

References 16 publications

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“…More recently, Walker model has been shown to well describe the mean stress effect of a stainless steel sheet, while other conventional equations were unreliable 62 . Kujawski 63 proposed a modified SWT model to extend its accuracy to load ratios

R = σ_{m i n} false/ σ_{m a x} \leq - 1

, for which it has been shown to be non‐conservative.…”

Section: Overview Of Recent Developmentsmentioning

confidence: 99%

Influence of pre‐strain and bake hardening on the static and fatigue strength of a DP600 steel sheet

Kusch

Crivelli

Diviani

et al. 2023

Fatigue Fract Eng Mat Struct

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The influence of pre‐strain on the tensile and fatigue properties of a dual phase DP600 steel was studied. The material was pre‐strained by uni‐axial tension in rolling and transverse direction. Thereafter, specimens were cut from the deformed plates in parallel or orthogonal to pre‐strain direction. It was found that pre‐strain increases yield and tensile strength. Results suggested that strain path change primarily affects the elastic‐plastic transition during early stage of reloading. Pre‐strained specimens showed an increase in high cycle regimes as a consequence of yield strength increment, irrespective of imposed pre‐straining direction. A modified stress life equation that accounts for pre‐strain was proposed and showed good agreement with experimental data. Bake hardening enhanced both tensile and high cycle fatigue resistance. Walker equation was successfully fitted to account for tensile mean stress. In low cycle fatigue, negligible influence of pre‐strain was observed due to cyclic softening and residual stress relaxation.

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R = σ_{m i n} false/ σ_{m a x} \leq - 1

, for which it has been shown to be non‐conservative.…”

Section: Overview Of Recent Developmentsmentioning

confidence: 99%

Influence of pre‐strain and bake hardening on the static and fatigue strength of a DP600 steel sheet

Kusch

Crivelli

Diviani

et al. 2023

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

“…Recently, many researchers have focused on the CCF life prediction model. Based on the increasing theoretical research on CCF fatigue damage accumulation in turbine blades, some fatigue life prediction models under CCF loading conditions have been proposed 42–51 …”

Section: Introductionmentioning

confidence: 99%

“…Based on the increasing theoretical research on CCF fatigue damage accumulation in turbine blades, some fatigue life prediction models under CCF loading conditions have been proposed. [42][43][44][45][46][47][48][49][50][51] For instance, based on damage mechanics theory, Han et al 48 proposed a life prediction model for CCF. The prediction model has been verified by experimental results, and a method for determining the allowable aluminized position in turbine blades is proposed.…”

Section: Introductionmentioning

confidence: 99%

On the consideration of loading interaction in combined high and low cycle fatigue life prediction

Liu

Wang

Shen

et al. 2023

Fatigue Fract Eng Mat Struct

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Based on the analysis of the test data and Miner's rule, a combined high and low cycle fatigue (CCF) life prediction model considering the loading interaction is established by introducing coupled damage. The coupled damage is determined by multiplying the high cycle fatigue damage and the low cycle fatigue damage by a coupled damage coefficient K. According to the analysis of the test data, the coupled damage coefficient K is positively correlated with the high cycle stress ratio R. In addition, an interaction factor, which reflects the loading interaction effect, is introduced to correct the coefficient K. The CCF experimental data of four materials are employed for model verification and comparison among the proposed model, Miner's rule, and Trufyakov-Kovalchuk model (T-K model). The proposed model exhibits a relatively higher prediction accuracy and is more suitable for predicting the fatigue life of CCF. K E Y W O R D S combined high and low cycle fatigue, coupled damage, fatigue life, loading interaction Highlights 1. A combined fatigue life prediction model is proposed considering loading interaction.2. Coupled damage coefficient is determined through analysis of the test data. 3. The proposed model exhibits a relatively higher prediction accuracy.

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Fatigue probabilistic assessments on a circular lap welding joint of stainless steels under axial loading

Oh¹

2022

Int J Adv Manuf Technol

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Effective stress and fatigue life prediction with mean stress correction models on a ferritic stainless steel sheet

Cited by 16 publications

References 16 publications

Influence of pre‐strain and bake hardening on the static and fatigue strength of a DP600 steel sheet

Influence of pre‐strain and bake hardening on the static and fatigue strength of a DP600 steel sheet

On the consideration of loading interaction in combined high and low cycle fatigue life prediction

Fatigue probabilistic assessments on a circular lap welding joint of stainless steels under axial loading

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