Study on the influence factors of the bearing characteristics of the ship with an integrated glass fiber sandwich composite superstructure

Chen，Diyi1; Lu，Xin2; Qu，Yan1; Wang，Zhao3; Hao，Zhihao3

2024-05-01

10.1016/j.oceaneng.2024.116933

Ocean Engineering   影响因子和分区

0029-8018

The research object is a scaled ship model based on the actual size of the naval ship. The ship model's superstructure is made of fiberglass sandwich composite structure and integrated design method. Firstly, based on the theory of composite sandwich panel, the magnitude and distribution of stresses and deformations of the measuring points on the model are analyzed by using the static loading test with four-point bending method under the hogging and sagging cases. The work finds that when the integrated superstructure participates in the total longitudinal bending of ships, its sandwich composite material structure has low stress and coordinated deformation. Therefore, when there are no elastic joints, the superstructure can be constructed into a continuous integrated structural form. After that, the composite stiffness degradation correction model is proposed, the USDFLD subroutine for the failure criterion of the composite shell elements is written, and the damage modes, damage regions and extension paths of the superstructure are obtained by applying different proportions of displacement loads and calculating based on the finite element model of progressive damage. Finally, the work further analyzes the influence of the thickness and orientation of fiber layer in skin, the structural materials of superstructure, the material types and layup thickness of stiffeners in superstructures, and the structural form with or without deck opening and transverse bulkheads on the bearing characteristics and mechanical properties of the integrated superstructure.

Bearing characteristics Glass fiber sandwich composite Integrated superstructure Mechanical tests Progressive damage Scaled model

SCI ; EI

英语

其他

ENGINEERING

2-s2.0-85186666069

Scopus

1.School of Marine Science and Engineering,Guangzhou International Campus,South China University of Technology,Guangzhou,511442,China
2.CSSC Guangzhou Huangpu Shipbuilding Company Limited,Guangzhou,511462,China
3.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China

Chen，Diyi,Lu，Xin,Qu，Yan,et al. Study on the influence factors of the bearing characteristics of the ship with an integrated glass fiber sandwich composite superstructure[J]. Ocean Engineering,2024,299.

Chen，Diyi,Lu，Xin,Qu，Yan,Wang，Zhao,&Hao，Zhihao.(2024).Study on the influence factors of the bearing characteristics of the ship with an integrated glass fiber sandwich composite superstructure.Ocean Engineering,299.

Chen，Diyi,et al."Study on the influence factors of the bearing characteristics of the ship with an integrated glass fiber sandwich composite superstructure".Ocean Engineering 299(2024).