Structural deformation mechanism of the hat-stiffened plate used in marine structures under impact load

Wang, Zeping; Liu, Kun; Yu, Tongqiang; Zong, Shuai; Wang, Xiufei

doi:10.1016/j.oceaneng.2022.112736

Cited by 2 publications

(2 citation statements)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The finite element analysis also discussed how factors like initial imperfections, lateral loads, and different types of openings impacted the ultimate compressive strength of the stiffened panel. While prior studies explored the deformation mechanisms of stiffened plates in marine structures under impact loads [12][13][14], the evaluation of openings in stiffeners under impact loading remains an aspect that has yet to be thoroughly investigated.…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Openings in Stiffeners under Impact Loading: Investigating Structural Response and Failure Behavior

Ridwan,

Sudarno,

Nubli

et al. 2023

Mekanika: Majalah Ilmiah Mekanika

View full text Add to dashboard Cite

<span lang="EN-US">As the demand for lightweight ships continues to rise, there is a growing necessity to explore innovative methods that can reduce the weight of ship structures without altering the materials used. This research addresses this challenge by investigating the effect of opening in stiffener under impact loading. The research aims to provide valuable insights into optimizing weight reduction strategies while ensuring the ship's overall strength and performance remain uncompromised. To achieve this goal, the study employed the finite element method as a solver. By simulating impact scenarios and analyzing stiffener responses, the numerical analysis quantified the structural behavior and failure modes. The focus was on understanding the impact of openings on the structural integrity and how it relates to their positioning relative to the impact point. The results of the study indicate that opening slightly distant from the impact point exhibit greater strength, showcasing a counterintuitive relationship between opening placement and structural response.</span>

show abstract

Section: Introductionmentioning

confidence: 99%

Numerical Analysis of Openings in Stiffeners under Impact Loading: Investigating Structural Response and Failure Behavior

Ridwan,

Sudarno,

Nubli

et al. 2023

Mekanika: Majalah Ilmiah Mekanika

View full text Add to dashboard Cite

show abstract

“…Li YG, et al [22] determined the dynamic responses of PVC foam-filled sandwich structures subjected to a rigid wedge impactor. Wang ZP et al [23] investigated the structural deformation of plates with hatshaped stiffeners subjected to a hemispherical impactor. The impact of floating ice on ships and offshore structures has also attracted special attention.…”

Section: Introductionmentioning

confidence: 99%

Experimental Research on Dynamic Behavior of Stiffened Plates under Drop-Weight Impacts of a Wedge Impactor

Luo

Chen

et al. 2023

Materials

View full text Add to dashboard Cite

Deck structures subjected to drop-weight low-velocity impact are critical safety elements for ships and offshore structures. Therefore, the aim of the present study is to propose experimental research on dynamic responses of deck structures composed of stiffened plates subjected to drop-weight impact of a wedge impactor. The first step was to fabricate a conventional stiffened plate specimen and a strengthened stiffened plate specimen, as well as a drop-weight impact tower. Then, drop-weight impact tests were carried out. Test results show that local deformation and fracture occurred in the impact area. A sharp wedge impactor caused premature fracture, even under relative low impact energy; the permanent lateral deformation of the stiffened plate was reduced by 20–26% by the strengthening effect of a strengthening stiffer; residual stress and the stress concentration of the cross-joint caused by welding may cause undesired brittle fracture. The present investigation provides useful insight for improving the crashworthiness design of the deck structure of ships and offshore structures.

show abstract

Structural deformation mechanism of the hat-stiffened plate used in marine structures under impact load

Cited by 2 publications

References 13 publications

Numerical Analysis of Openings in Stiffeners under Impact Loading: Investigating Structural Response and Failure Behavior

Numerical Analysis of Openings in Stiffeners under Impact Loading: Investigating Structural Response and Failure Behavior

Experimental Research on Dynamic Behavior of Stiffened Plates under Drop-Weight Impacts of a Wedge Impactor

Contact Info

Product

Resources

About