Research on Collapse Testing of Nuclear Icebreaker Reactor Hull Structure Based on Distortion Similarity Theory

In this study, the finite element method combined with the model test method are used to investigate the ultimate strength of a target ship reactor hull structure under a pure bending load. Based on the distortion similarity theory and nonlinear similarity method, a scale model of the actual ship re...

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Bibliographic Details
Published in:Journal of Marine Science and Engineering
Main Authors: Yi Lin, Ruiqi Cheng, Lizhi Chen, Xiangshao Kong, Zhiyong Pei
Format: Article in Journal/Newspaper
Language:English
Published: MDPI AG 2024
Subjects:
distortion similarity theory
nonlinear similarity method
reactor hull structure
ultimate strength
collapse test
Naval architecture. Shipbuilding. Marine engineering
VM1-989
Oceanography
GC1-1581
Icebreaker
Online Access:https://doi.org/10.3390/jmse12071184
https://doaj.org/article/d4ec04d1464e4e2c8b1e537b336cfb7f
Description
Summary:In this study, the finite element method combined with the model test method are used to investigate the ultimate strength of a target ship reactor hull structure under a pure bending load. Based on the distortion similarity theory and nonlinear similarity method, a scale model of the actual ship reactor hull structure is designed and the model collapse test is conducted. The ultimate bending moment obtained by the model test is transformed to the actual ship through the similarity transformation relationship and compared with the nonlinear finite element analysis result of the actual structure. The results are consistent with each other, which indicates that the collapse characteristics of the actual ship reactor hull structure can be better forecasted using the model test results when the test model is designed based on the nonlinear similarity method and distortion similarity theory.

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