Empirical formulations for prediction of permanent set evolution of steel plates due to repeated impulsive pressure loadings induced by slamming

Truong, Dac Dung; Huynh, Van Vu; Jang, Beom-Seon; Quach, Hoai Nam; Dang, Xuan-Phuong; Duong, Hao Dinh; Cho, Sang-Rai

doi:10.1016/j.oceaneng.2022.113430

Cited by 4 publications

(4 citation statements)

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“…[9,10] were selected for the validation purposes. Details of the simulation and results obtained were given in [10,14]. It was revealed that a good correlation between the numerical predictions and the test results was observed.…”

Section: Validation Of Numerical Analysis Modelmentioning

confidence: 90%

“…The resulting f becomes decreased [30,31]. The detailed calculation can also be found in Truong et al [13].…”

Section: Load Characteristicsmentioning

confidence: 99%

“…Besides, the simplified method is often preferable for the early design stage because of its simplicity. Truong et al [11][12][13] developed the empirical formulae to predict the permanent set evolution of aluminum and steel plates subjected to repeated slamming pressures. Recently, Truong et al [14] also presented numerical investigation results of the effect of the impulse and geometry on the damage extents of actual scantling plates subjected to repeated impulsive pressures.…”

Section: Introductionmentioning

confidence: 99%

“…The former survey shows no detailed report on the effect of material strain rate on the response of steel plates subjected to repeated pressure impacts. In addition, the idealization of the slamming pressure profile as a simplified impulse shape is often required in analyses of the impact response and residual deformation of marine structures due to local slamming loads [13]. The effect of the impulse profile was also noticed in [12] for repeated pressure cases, but with several impact times only.…”

Section: Introductionmentioning

confidence: 99%

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Effects of material strain rate, impulse profile on damage evolution of steel plates subjected to repeated pressures

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et al. 2023

IOP Conf. Ser.: Earth Environ. Sci.

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This study deals with a numerical estimation of the damage evolution of steel plates used in ships and offshore structures due to repeated slamming-induced pressures. The numerical analysis model was developed using finite element ABAQUS software. Subsequently, the validated model was extended to investigate the effects of material strain rate and impulse profile on the damage evolution of plates having actual scantlings. Different strain rate models were used, and several types of impulse profiles that can be used to simplify the actual slamming pressure were adopted. In the simulation, the material strain hardening was defined for the plate model, and the impulsive pressures were applied uniformly over the plate while it was fully clamped at four edges. The results showed that a large effect of the material strain rate on the damage evolution of the plate was noticed for only several first impacts, while the effect of the impulse profile is remarkable for whole impact events. The occurrence of the pseudo-shakedown phenomenon of steel plates was examined accordingly. The results can be useful for the design of ships and offshore structures against slamming.

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