Review on fatigue life prediction models of welded joint

Kang, Guozheng; Luo, Haoran

doi:10.1007/s10409-020-00957-0

Cited by 44 publications

(15 citation statements)

References 214 publications

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“…In 2020, Kang and Luo [ 65 ] and Mei et al [ 66 ] reviewed fatigue life prediction models such as continuum and stress-based approaches, which mentioned welded joint and notched components, respectively.…”

Section: Nonlocal Theories In Fatigue Evaluationmentioning

confidence: 99%

A Review on Nonlocal Theories in Fatigue Assessment of Solids

2023

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A review of nonlocal theories utilized in the fatigue and fracture modeling of solid structures is addressed in this paper. Numerous papers have been studied for this purpose, and various nonlocal theories such as the nonlocal continuum damage model, stress field intensity model, peridynamics model, elastic-plastic models, energy-based model, nonlocal multiscale model, microstructural sensitive model, nonlocal lattice particle model, nonlocal high cycle fatigue model, low cycle fatigue model, nonlocal and gradient fracture criteria, nonlocal coupled damage plasticity model and nonlocal fracture criterion have been reviewed and summarized in the case of fatigue and fracture of solid structures and materials.

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Section: Nonlocal Theories In Fatigue Evaluationmentioning

confidence: 99%

A Review on Nonlocal Theories in Fatigue Assessment of Solids

2023

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“…[ 113 ] Several studies [ 4–7,23,114 ] are conducted to better describe the fatigue behavior. According to the previous literature, [ 10,23,39,115,116 ] the discontinuity of weld geometry was the most important factor influencing the fatigue performance of welded joints, and the tensile residual stress was considered harmful to crack initiation and propagation in welded joints. The effect of plate thickness and loading type should also be comprehensively considered, and more important fatigue factors of welded joints can be considered through the expansion of fatigue performance database.…”

Section: Analysis Of Factors Influencing Fatigue Propertiesmentioning

confidence: 99%

A State‐of‐Art Review on Prediction Model for Fatigue Performance of Welded Joints via Data‐Driven Method

Feng

Zhao

et al. 2023

Adv Eng Mater

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Fatigue fracture of welded joints is an important cause for engineering accidents. Due to the coexistence of so many influencing factors, the current prediction model of fatigue behavior cannot be used for all service conditions. The progress of each module (database establishment, data processing, data augmentation, dimension reduction, and comprehensive consideration of influencing factors) during the process of constructing a prediction model is summarized herein. Specifically, the state‐of‐art prediction models of fatigue strength, fatigue crack growth rate, fatigue life, and fatigue reliability are introduced. Moreover, suggestions for future work are given at the end of each section. Finally, according to the influential prediction methods, the establishment of fatigue performance prediction methods of welded joints via data‐driven method is summarized.

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“…When cracks develop and propagate, the residual stress changes depending on the size and direction of the cracks. So the residual stress may have a significant effect on the crack life [6][7][8][9][10][11]. According to the simulation results of Wang et al [6], the residual stress significantly influenced the fatigue life of a T-joint when the stress ratio was less than 0.5.…”

Section: Introductionmentioning

confidence: 98%

“…But they retarded the growth rate in the compact tension sample. Kang and Luo [8] reviewed existing fatigue life prediction models considering residual stresses and ratcheting. Wang et al [9] applied Lemaitre's plastic damage model considering weldinduced residual stresses and weld-induced plastic damage.…”

Section: Introductionmentioning

confidence: 99%

Effect of Post-Weld Heat Treatment on the Fatigue Behavior of Medium-Strength Carbon Steel Weldments

Goo

2021

Metals

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Railway vehicle makers manufacture the bogie frame by welding medium-strength carbon steel sheets. It has been a long-standing practice to perform post-weld heat treatment (PWHT) to remove welding-residual stress, but rail car manufacturers are moving toward producing bogie frames without PWHT. Since securing the fatigue strength of the bogie frame is essential for vehicle operation safety, it is necessary to systematically evaluate the effects of PWHT on hardness, microstructure, mechanical properties, corrosion, fatigue strength, etc. In this study, small-scale welding specimens and full-size components were produced using S355JR used in general structures, automobiles, shipbuilding, railroad vehicles, etc. The effect of PWHT on material properties-the hardness of the base material, heat-affected zone and weld metal, microstructure, shock absorption energy, yield strength, tensile strength, and fatigue were investigated. When the weld specimen was annealed at 590 °C and 800 °C for 1 h, the yield strength and tensile strength of the specimen decreased, but the elongation increased. For specimens not heat-treated, the parent material’s yield strength, the yield strength in HAZ, and the yield strength of the weld metal were 350 MPa, 345 MPa, and 340 MPa. For specimens heat-treated at 590 °C, they were 350 MPa, 345 MPa, and 340 MPa. For specimens heat-treated at 800 °C, they were 350 MPa, 345 MPa, and 340 MPa. Annealing heat treatment of the specimen at 800 °C homogenized the structure of the weldments similar to that of the base material and slightly improved the shock absorption energy. For specimens not heat-treated, the Charpy impact absorption energies at 20 °C of the parent material and weld metal were 291.5 J and 187 J. For specimens heat-treated at 590 °C, they were 276 J and 166 J. For specimens heat-treated at 800 °C, the Charpy impact absorption energy at 20 °C of the parent material was 299 J. PWHT at 590 °C had the effect of slightly improving the fatigue limit of the specimen but lowered the fatigue limit by 10.8% for the component specimen.

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Review on fatigue life prediction models of welded joint

Cited by 44 publications

References 214 publications

A Review on Nonlocal Theories in Fatigue Assessment of Solids

A Review on Nonlocal Theories in Fatigue Assessment of Solids

A State‐of‐Art Review on Prediction Model for Fatigue Performance of Welded Joints via Data‐Driven Method

Effect of Post-Weld Heat Treatment on the Fatigue Behavior of Medium-Strength Carbon Steel Weldments

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