Fatigue damage assessment under random and variable amplitude multiaxial loading conditions in structural steels

Anes, Vítor; Caxias, Joao; Freitas, M.; Reis, L.

doi:10.1016/j.ijfatigue.2016.12.009

Cited by 22 publications

(13 citation statements)

References 19 publications

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“…Gas‐turbine engines usually operate under the variable thermal‐mechanical fatigue loadings. Load sequence is widely believed to have a great influence on the accumulated fatigue damage of a component . Taking the loading history into account, various investigations have been performed to understand the micro‐mechanism of fatigue‐failure .…”

Section: Introductionmentioning

confidence: 99%

“…Load sequence is widely believed to have a great influence on the accumulated fatigue damage of a component. [1][2][3][4][5] Taking the loading history into account, various investigations have been performed to understand the micromechanism of fatigue-failure. [6][7][8] Nevertheless, the development of nonlinear fatigue damage model was required to ensure safety and economy in the structural design.…”

Section: Introductionmentioning

confidence: 99%

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Residual fatigue life prediction based on a novel damage accumulation model considering loading history

Shi

et al. 2020

Fatigue Fract Eng Mat Struct

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The influence of prior low‐cycle fatigue (LCF) on the residual fatigue life was investigated experimentally. A Ni‐based alloy was cyclically loaded under stress‐controlled low‐high (LH) block loading. In the first loading step, low‐amplitude loading was performed with the stress amplitude of 283.5MPa at 710°C. Different cycles of preloading were performed, varying from 100 to 10 000. Subsequently, high‐amplitude fatigue loading was carried out with the stress amplitude of 315MPa at 800°C. Experimental results show that the previous loading was beneficial to the residual fatigue life when the consumed life fraction is below 0.2 and detrimental when the consumed life fraction is larger than 0.2. A novel nonlinear fatigue damage accumulation model was proposed to estimate the residual LCF life under LH loading path considering the effects of load sequence and preloading cycles. The proposed model provided a better life prediction than some existing models, such as Kwofie‐Rahbar model, Miner' rule, Peng model, and Ye‐Wang model. Lastly, this model was further validated using various materials under LH and high‐low block loadings.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Residual fatigue life prediction based on a novel damage accumulation model considering loading history

Shi

et al. 2020

Fatigue Fract Eng Mat Struct

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

“…Another issue in the analysis of a variable amplitude loading history is calculating the fatigue damage of the history by the accumulation of the fatigue damage caused by each counted cycle. Experimental studies show that the fatigue damage progresses in a nonlinear fashion, and many researchers, such as Anes et al, have proposed methods to account for this nonlinearity. However, the linear damage rule (LDR) remains the most commonly used damage accumulation rule due to its simplicity .…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the realistic loading conditions of a component during its service life is far from constant amplitude uniaxial loading. However, despite its broad applicability, a small number of studies have analyzed fatigue behavior under variable amplitude multiaxial loading conditions, such as studies by Kim et al, 1 Wang and Susmel, 2 Gates and Fatemi, 3,4 and Anes et al 5 There are a number of obstacles in the process of developing a methodology for the analysis of fatigue behavior under variable amplitude multiaxial loading conditions. In order to have a reasonable estimation of fatigue behavior in such conditions, these obstacles should be addressed properly.…”

Section: Introductionmentioning

confidence: 99%

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Fatigue analysis of ductile and brittle behaving steels under variable amplitude multiaxial loading

Sharifimehr

Fatemi

2019

Fatigue Fract Eng Mat Struct

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The analysis of fatigue behavior under multiaxial variable amplitude stress states, despite its wide applicability, has not been fully studied. Issues such as varying degrees of nonproportionality of the load history, cycle counting, damage accumulation, failure behavior of the material, and mean stress fluctuations which can significantly affect the results of these analyses have not been well understood. In this study, a methodology for the analysis of fatigue behavior under multiaxial variable amplitude loading conditions is employed which accounts for the aforementioned issues. At its core, the applied methodology uses critical plane analysis based on the failure behavior of each material to assess the fatigue damage. In order to evaluate the performance of the analysis method, axial, torsional, and combined axial‐torsional variable amplitude tests were performed on one ductile and one brittle behaving steel. The applied methodology resulted in close estimation of the experimental fatigue life for both ductile and brittle behaving steels.

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Durability Assessment of Multiaxial Strain Loads for Rural Road Condition in Time–Frequency Domain

Hamzi

Singh

Abdullah

et al. 2022

Structural Integrity

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Fatigue damage assessment under random and variable amplitude multiaxial loading conditions in structural steels

Cited by 22 publications

References 19 publications

Residual fatigue life prediction based on a novel damage accumulation model considering loading history

Residual fatigue life prediction based on a novel damage accumulation model considering loading history

Fatigue analysis of ductile and brittle behaving steels under variable amplitude multiaxial loading

Durability Assessment of Multiaxial Strain Loads for Rural Road Condition in Time–Frequency Domain

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