Dynamic Collapse Mechanism of Global Hull Girder of Container Ships Subjected to Hogging Moment

Autor:	Yamada Yasuhira
Rok vydání:	2019
Předmět:	business.industry Mechanical Engineering Collapse (topology) 020101 civil engineering Ocean Engineering 02 engineering and technology Structural engineering 0201 civil engineering Mechanism (engineering) Moment (mathematics) Hull Girder Container (abstract data type) Hogging business Geology
Zdroj:	Journal of Offshore Mechanics and Arctic Engineering. 141
ISSN:	1528-896X 0892-7219
DOI:	10.1115/1.4042267
Popis:	The purpose of the present study is to investigate dynamic ultimate strength of global hull girder of container ships using large-scale nonlinear finite element analysis (FEA). A series of time domain nonlinear finite element (FE)-simulation is carried out using large-scale FE models of a 8000 twenty-foot equivalent unit (TEU) container ship where a hogging moment is applied to the midship section. Five types of finite element models (three full models, a half hold model, a one transverse model) are used. These models adopt elastoplastic material model, which includes strain rate effect. The hogging moment, which is modeled by sinusoidal impulse, is applied to these models, and collapse mechanism as well as dynamic hull girder ultimate strength is investigated by varying the load time duration. Moreover, effects of load time duration, mass inertia, strain rate, and analysis models are investigated in detail. It is found from the present study that ultimate strength as well as collapse mode is significantly dependent on load time duration of hogging moment.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::be3e193c55eb4859fc2ed282c0abc367 https://doi.org/10.1115/1.4042267 Zobrazit plný text záznamu