The similitude of fatigue damage principle: Application in S-N curves-based fatigue design

Petinov, Sergei V.; Reemsnyder, Harold S.; Thayamballi, Anil Kumar

doi:10.1016/s1566-1369(99)80044-2

Cited by 7 publications

(8 citation statements)

References 4 publications

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“…It can be seen that similar crack propagation tendency was obtained as well. According to the analysis from Petinov et al , the most likely cause is due to the variation of boundary condition of T‐welded joint specimen during fatigue test.…”

Section: Experimental Results and Data Analysismentioning

confidence: 99%

“…However, it is obvious that these factors can't change the trend of crack propagation and can't make the error so huge. According to the work of Petinov et al mentioned before, the huge error is due to the variation of boundary conditions during fatigue test. In the work of Petinov et al , they clarified that the effects of the surrounding structure should be taken into account during fatigue crack propagation, but the specific calculation method was not given.…”

Section: Numerical Calculation and Results Analysismentioning

confidence: 99%

“…[8][9][10][11] Furthermore, in the work of Petinov et al, they claimed that the initial phase of the fatigue life and the subsequent crack propagation should be analysed separately by considering the effects of the surrounding structure and loading. 12 Therefore, an experiment was designed in this work with the aim of analysing the crack growth of T-welded joints via considering the influence of component shape and boundary condition during fatigue test. Q345D steel, which is widely used in ship and offshore structures, was chosen as research material.…”

Section: N O M E N C L a T U R Ementioning

confidence: 99%

“…It can be seen that similar crack propagation tendency was obtained as well. According to the analysis from Petinov et al, 12 the most likely cause is due to the variation of boundary condition of T-welded joint specimen during fatigue test. Figures 15-17 shows the schematic force and deformation diagram of T-joint without crack, with small crack and with large crack, respectively.…”

Section: Repeated Experiments Set-up and Analysismentioning

confidence: 99%

“…Even though there are many works focusing on the crack propagation behaviour of T‐joint under fatigue loading, the work of considering the influence of boundary condition of T‐joints in ships and ocean structure is rare . Furthermore, in the work of Petinov et al , they claimed that the initial phase of the fatigue life and the subsequent crack propagation should be analysed separately by considering the effects of the surrounding structure and loading . Therefore, an experiment was designed in this work with the aim of analysing the crack growth of T‐welded joints via considering the influence of component shape and boundary condition during fatigue test.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Experimental and analytical investigation of fatigue crack propagation of T‐welded joints considering the effect of boundary condition

Sun

Gan

Wang

et al. 2016

Fatigue Fract Eng Mat Struct

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T‐welded joints are commonly employed in ship and ocean structures. The fatigue failure of structure components subjected to cyclic loading always occurs in T‐welded joints because of the metallurgical differences, tensile residual stress fields and stress concentrations. The former researches about T‐welded joints fatigue have in common that the boundary condition needs to be taken into account as an influencing parameter to predict the crack propagation during cyclic loading. In this paper, the crack growth behaviour in T‐welded joint processed with Q345D steel (Pingxiang Iron & Steel Co., Ltd, Hukou, Jiangxi Province in China) under the fatigue loading was analysed via analytical model and verified via experiment. The results show that the influence of boundary condition should be considered in T‐welded joint structure during crack propagation in weld toe area. The correction factor concerning the effect of boundary condition and modified Paris' equation was proposed according to the experimental results and verified by the following repeated experiments.

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Section: Experimental Results and Data Analysismentioning

confidence: 99%

Section: Numerical Calculation and Results Analysismentioning

confidence: 99%