Numerical and experimental investigation on the collision resistance of the X-core structure

被引：54

作者：

Ehlers, Soeren ^{[1
]}

Tabri, Kristjan ^{[2
]}

Romanoff, Jani ^{[1
]}

Varsta, Petri ^{[1
]}

机构：

[1] Aalto Univ, Dept Appl Mech, Espoo, Finland

[2] Tallinn Univ Technol, Dept Civil Engn, Tallinn, Estonia

来源：

SHIPS AND OFFSHORE STRUCTURES | 2012年 / 7卷 / 01期

关键词：

quasi-static and dynamic collision simulations; material modelling; plate and weld failure;

D O I：

10.1080/17445302.2010.532603

中图分类号：

U6 [水路运输]; P75 [海洋工程];

学科分类号：

0814 ; 081505 ; 0824 ; 082401 ;

摘要：

This paper analyses the collision resistance of the X-core structure. The analysis includes a detailed investigation of the non-linear plate and laser weld material behaviour using optical, full-field strain measurements. The resulting material relationships are implemented into the finite element model. Furthermore, the finite element model includes the influence of the ship motions to accurately predict the collision resistance. The verification of the numerical results is done by a comparison of the experimental and numerical force versus penetration curves and by a comparison of the deformed geometries. The latter is achieved through a digitised three-dimensional model of the post-experimental X-core structure. As a result, the accuracy of the collision simulations is presented and discussed.

引用

页码：21 / 29

页数：9

共 14 条

[1] On the resistance to penetration of stiffened plates, Part II: Numerical analysis [J].