Analysis of biaxial proportional low-cycle fatigue and biaxial accumulative plasticity of hull inclined-crack plate

Deng, Junlin; Tu, Wenling; Xiong, Kang; Pan, Yang; Dong, Qi

doi:10.1016/j.ijnaoe.2021.11.006

Cited by 8 publications

(5 citation statements)

References 35 publications

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“…The transmission components of large transportation equipment such as high-speed rail, aircraft, and ships are often subjected to multiple directional loads such as tension and torsion during service, which are prone to multiaxial fatigue failure in the machined surface layer. [1][2][3][4] Gear steel, as the most commonly used material in transmission components, has always been a focus of industrial and academic research on its fatigue performance. [5][6][7] Zhang et al 8 systematically analyzed surface integrity and fatigue behavior of gear steel after carburizing and combined treatment and found that residual compressive stress is an important factor affecting the fatigue crack propagation mode.…”

Section: Introductionmentioning

confidence: 99%

“…The transmission components of large transportation equipment such as high‐speed rail, aircraft, and ships are often subjected to multiple directional loads such as tension and torsion during service, which are prone to multiaxial fatigue failure in the machined surface layer 1–4 . Gear steel, as the most commonly used material in transmission components, has always been a focus of industrial and academic research on its fatigue performance 5–7 .…”

Section: Introductionmentioning

confidence: 99%

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A crystal plastic finite element model for the effect of surface integrity on multiaxial fatigue life after multistage machining processes

Liang,

Jiao,

Yan

et al. 2024

Fatigue Fract Eng Mat Struct

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Surface integrity influences the material fatigue performance significantly, but most micromechanical models based on crystal plasticity only consider the microstructure of the matrix. In this paper, a crystal plastic finite element modeling method was proposed, which simultaneously considered surface roughness, residual stress, and gradual microstructure. It was verified through multiaxial fatigue experiments of materials processed by different multistage machining processes. The results show that larger axial residual compressive stress and smaller grain size can lead to higher multiaxial fatigue life. The existence of residual compressive stress causes the location of material crack initiation to decrease from the surface layer to the subsurface layer. The proposed model can predict the multiaxial fatigue life of materials within a 50% error band.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

A crystal plastic finite element model for the effect of surface integrity on multiaxial fatigue life after multistage machining processes

Liang,

Jiao,

Yan

et al. 2024

Fatigue Fract Eng Mat Struct

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show abstract

“…Fang et al studied offshore structures using the fatigue crack growth prediction method [20]. Deng et al, investigated biaxial proportional low cycle fatigue & biaxial accumulative plasticity of gastric inclined fracture plates using numerical analysis [21]. Lee et al, evaluated the fatigue of low-cycle materials in pipe joints using the structural strain method [22].…”

Section: Introductionmentioning

confidence: 99%

Fatigue Life Assessment of Deck Barge Construction Using Numerical Simulation Methods

Alamsyah,

Setiawan,

Wulandari

et al. 2023

zonalaut

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Barges are used as the main means of transporting heavy goods such as nickel, wood, coal and other materials that are placed on the main deck and have implications for stress values and construction fatigue life. This study uses a numerical simulation method with the help of ANSYS software. The load simulations given to the main deck construction of the barge are 50% load, 75% load, and 100% load (full load). The results of the numerical simulation detected that the largest stress occurred when the 100% load condition was 190.7 MPa. The stress with 75% load is 160.21 MPa and the stress for 50% load is 129.73 MPa. The fatigue life at 100% load is 10.66 years with a stress cycle of 170000 times, 75% load is 13.49 years with a stress cycle of 300000, and a 50% load is 21.16 years with the a stress cycle of 700000. -

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“…The fracture parameters, such as the stress intensity factor K [13][14][15][16][17][18][19], crack tip opening displacement (CTOD) [20,21], the Jintegral [22], the size of the reversed plastic zone [23][24][25], etc., are important factors to assess the fatigue crack propagation life. Fatigue crack propagation research has been primarily conducted by scholars from the perspective of the crack tip stress distribution [26,27] and crack closure effect [28][29][30], etc., leading to several valuable conclusions [31][32][33][34][35][36][37][38][39][40]. When a severe stress concentration occurs, plastic deformation arises in the surrounding area, which gradually accumulates, eventually resulting in crack propagation.…”

Section: Introductionmentioning

confidence: 99%

Experimental and Numerical Study on Crack Propagation of Cracked Plates under Low Cycle Fatigue Loads

Dong

Zhao

et al. 2023

JMSE

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The traditional study on fatigue strength for ship structures usually focuses on high cycle fatigue and ignores low cycle fatigue. However, given the recent trend towards large-scale ship development, the stress and deformation experienced by ship structures are becoming increasingly significant, leading to greater attention being paid to low cycle fatigue damage. Therefore, experimental and numerical studies on crack propagation behavior of cracked plates under low cycle fatigue loads were carried out in this paper, in order to explain the fatigue crack propagation mechanism. The effect of the stress ratio and maximum applied load on the crack propagation behavior was investigated by conducting experimental research on the cracked plate of AH32 steel. The experimental results show that an increasing maximum applied load and decreasing stress ratio will shorten the fatigue life of the cracked plate. Meanwhile, based on the finite element method, the distribution of the stress–strain field at the crack tip and the effect of crack closure were evaluated. The influencing factors such as the stress ratio and crack length were considered in numerical studies, which provided a new way to study the low cycle fatigue crack propagation behavior.

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Analysis of biaxial proportional low-cycle fatigue and biaxial accumulative plasticity of hull inclined-crack plate

Cited by 8 publications

References 35 publications

A crystal plastic finite element model for the effect of surface integrity on multiaxial fatigue life after multistage machining processes

A crystal plastic finite element model for the effect of surface integrity on multiaxial fatigue life after multistage machining processes

Fatigue Life Assessment of Deck Barge Construction Using Numerical Simulation Methods

Experimental and Numerical Study on Crack Propagation of Cracked Plates under Low Cycle Fatigue Loads

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