Computational models for the ultimate compressive strength analysis of a steel stiffened plate structure at cryogenic condition
Paper i proceeding, 2019

The aim of the present study is to develop computational models for the ultimate strength analysis of steel stiffened plate structures under axial compressive loading and cryogenic condition. As the number of vessels fueled by liquefied natural gas (LNG) are increasing, there are potential hazards that LNG leaks to hull structures, leading to cryogenic condition with a temperature of -160 deg. C. Under extreme compressive loading, steel stiffened plate structures under cryogenic condition can exhibit brittle fracture before and after ultimate strength is reached. The authors have shown such an evidence through a physical model testing on a large scale steel stiffened plate structures, which was presented in a separate paper. In the present paper, computational models using nonlinear finite element method are developed to simulate the ultimate compressive strength behavior of steel stiffened plate structures at cryogenic condition, involving brittle fracture. The numerical computations are compared with test database obtained from the physical model testing.

Cryogenic condition

Steel stiffened plate structure

Nonliear finite element method modelling

Brittle fracture

Ultimate compressive strength

Författare

Dong Hun Lee

Pusan National University

Sung Hwan Noh

Pusan National University

Jonas Ringsberg

Chalmers, Mekanik och maritima vetenskaper, Marin teknik

Jeom Kee Paik

University College London (UCL)

Pusan National University

Proceedings of The 4th International Conference on Ships and Offshore Structures (ICSOS 2019)

183-183 ICSOS2019-012

The 4th International Conference on Ships and Offshore Structures (ICSOS 2019)
Melbourne, Florida, USA,

Grundläggande forskning av den maximala kompressiva styrkan av förstyvade plåtstrukturer i fartyg vid Arktiska och kryogena temperaturer

Vetenskapsrådet (VR), 2019-01-01 -- 2019-12-31.

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Hållbar utveckling

Innovation och entreprenörskap

Styrkeområden

Transport

Materialvetenskap

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Teknisk mekanik

Beräkningsmatematik

Annan materialteknik

Farkostteknik

Metallurgi och metalliska material

Fundament

Grundläggande vetenskaper

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Skapat

2019-11-08