Modeling of non-proportional multiaxial fatigue under synchronous and asynchronous sinusoidal loading conditions

Ravi, Sandipp Krishnan; Wei, Zhigang; Dong, Ping; Pei, Xianjun

doi:10.1016/j.ijfatigue.2022.107000

Cited by 10 publications

(3 citation statements)

References 40 publications

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“…The predictive capabilities of trained AI\ML models are extensively used to evaluate properties of new material system and structures, getting insights on response surfaces [33]. One prominent example of the same is given for multi-axial fatigue analysis [34][35][36][37][38]. Though several strides have been made in applying ML framework in the material science domain, one strong limitation that has been pointed out (as mentioned in the previous section) is the black box nature of the ML models and lack of associated interpretability.…”

Section: Application Of Explainable Ai In Materials Sciencementioning

confidence: 99%

Elucidating Precipitation in FeCrAl Alloys through Explainable AI: A Case Study

Roy

Ravi

Roychowdhury

et al. 2022

Preprint

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Primary challenge of using FeCrAl in high temperature industrial setting is the formation of α’- precipitates that causes brittleness in the alloy, resulting in failure through fracture. The precipitation causes hardness change during thermal aging which is sensitive to both alloy composition and experimental condition (i.e., temperature and time of heat treatment). A Gaussian Process Regression (GPR) model is built on the hardness data collected at GE Research. Subsequently, for the first time, SHapley Additive exPlanations (SHAP) built upon the GPR is used as an Explainable Artificial Intelligence (XAI) tool to understand the effect of feature values in driving the hardness change. Several key insights are affirmed and obtained from a material science perspective.

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Section: Application Of Explainable Ai In Materials Sciencementioning

confidence: 99%

Elucidating Precipitation in FeCrAl Alloys through Explainable AI: A Case Study

Roy

Ravi

Roychowdhury

et al. 2022

Preprint

Self Cite

View full text Add to dashboard Cite

show abstract

“…Several studies on multiaxial fatigue have been conducted to understand the cracking behavior. 19,20 Commonly applied multiaxial failure principles in real engineering have been proposed based on the maximum principal stress, 21 equivalent von Mises stress, 22 theory of critical plane, 23 etc. Using the aforementioned approach, Fu et al 24 evaluated the multiaxial fatigue damage in deck and U-rib welds based on multiaxial fatigue loading experiments.…”

Section: Introductionmentioning

confidence: 99%

“…Several studies on multiaxial fatigue have been conducted to understand the cracking behavior 19,20 . Commonly applied multiaxial failure principles in real engineering have been proposed based on the maximum principal stress, 21 equivalent von Mises stress, 22 theory of critical plane, 23 etc.…”

Section: Introductionmentioning

confidence: 99%

Fatigue failure modes of rib‐to‐deck joints under the multiaxial stress states caused by various wheel loading characteristics

Zhu

Deng

Gong

et al. 2022

Fatigue Fract Eng Mat Struct

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Orthotropic steel bridge decks (OSBDs) are characterized by overall structural asymmetries and severe local stress concentrations; meanwhile, complicated service loadings always cause relevant rib‐to‐3deck (RD) welded joints in multiaxial stress states. Under such circumstances, a full‐scale OSBD model was established. Six loading cases were applied, and the multiaxial fatigue deviation was calculated to represent the multiaxial stress state of the bridge deck. Based on the effective traction structural stress method, the most unfavorable loading case for the failure mode of the RD joint under a multiaxial stress state was analyzed, and the failure mode transition in the process of wheel load movement was discussed. The results indicated that the fatigue failure mode of the RD joint was determined by the transverse loading locations. In‐between‐rib loading can cause the initiation of toe‐rib cracks. Cracks are prone to occur under over‐rib loading and riding‐rib loading, and the arrangement of diaphragms can increase the risk that the fatigue crack originates from the weld root.

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Frequency Domain Fatigue Evaluation on SCR Girth-Weld Based on Structural Stress

Zhang,

Zhao

2024

China Ocean Eng

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Modeling of non-proportional multiaxial fatigue under synchronous and asynchronous sinusoidal loading conditions

Cited by 10 publications

References 40 publications

Elucidating Precipitation in FeCrAl Alloys through Explainable AI: A Case Study

Elucidating Precipitation in FeCrAl Alloys through Explainable AI: A Case Study

Fatigue failure modes of rib‐to‐deck joints under the multiaxial stress states caused by various wheel loading characteristics

Frequency Domain Fatigue Evaluation on SCR Girth-Weld Based on Structural Stress

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