Home Itens selecionados Provedores de dados OAI Créditos Sobre Ajuda

			Busca avançada
	Provedor de dados ArchiMer (3) Autor Bouchonneau, Nadege (2) Choqueuse, Dominique (2) Perreux, Dominique (2) Davies, Peter (1) Grosjean, Francois (1) Le Gac, Pierre-yves (1) Le Gall, Maelenn (1) Poncet, Emmanuel (1) Sauvant-moynot, Valerie (1) Mais... Palavra-chave Syntactic foam (3) Deep sea (1) Hydrostatic compression (1) Isolation thermique (1) Layered structure (1) Mechanical characterization (1) Modelling (1) Modélisation thermomécanique (1) Mousse syntactique (1) Multilayered systems (1) Subsea (1) Systèmes multicouches (1) Thermal insulation (1) Thermal properties (1) Thermomechanical modelling (1) Mais... Tipo do documento Text (3) Ano 2014 (1) 2010 (1) 2007 (1) País France (3) Idioma Inglês (2) Francês (1)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 3 Primeira ... 1 ... Última Novel mechanical characterization method for deep sea buoyancy material under hydrostatic pressure ArchiMer Le Gall, Maelenn; Choqueuse, Dominique; Le Gac, Pierre-yves; Davies, Peter; Perreux, Dominique. Syntactic foams, used in submersibles and in pipelines for deep sea oil wells, must be resistant to the severe conditions of the deep sea environment. As these foams will be in service for at least 20 years, their qualification testing is crucial. However, their mechanical characterization under real conditions of use is a challenge. In deep sea, the main loading is hydrostatic compression, however there is no standard procedure for testing material under pure hydrostatic pressure. The aim of this paper is to present a new characterization technique based on buoyancy loss measurement under hydrostatic pressure. To validate the method, two different syntactic foams (one brittle and one ductile) have been tested. Their behaviours under hydrostatic pressure... Tipo: Text Palavras-chave: Hydrostatic compression; Syntactic foam; Deep sea; Mechanical characterization. Ano: 2014 URL: http://archimer.ifremer.fr/doc/00201/31191/29590.pdf Experimental testing and modelling of an industrial insulated pipeline for deep sea application ArchiMer Bouchonneau, Nadege; Sauvant-moynot, Valerie; Choqueuse, Dominique; Grosjean, Francois; Poncet, Emmanuel; Perreux, Dominique. Ultra-deep water (up to 3000 in) is one of the next frontiers for oil offshore exploitation. It requires the use of conduits having to resist in the long run (durability about 25 years) the mechanical and environmental requests. One of the key points is the thermal insulation of the structure to avoid the formation of hydrates and paraffin plugs inside of the steel pipe. Over the past 10 years, many studies were performed to better understand the behaviour of the syntactic foams used as thermal insulation of pipes for deepwater production, but few tests were run on industrial prototypes to reach the actual thermal properties of the systems. This paper presents the numerical and experimental characterizations of an industrial multilayered insulated pipeline... Tipo: Text Palavras-chave: Layered structure; Subsea; Thermal properties; Modelling; Syntactic foam. Ano: 2010 URL: http://archimer.ifremer.fr/doc/00011/12248/9032.pdf Etude du comportement des systèmes d'isolation thermique pour les grandes profondeurs d'eau ArchiMer Bouchonneau, Nadege. This work deals with the study of the thermomechanical behaviour of multilayered thermal insulation systems protecting subsea pipelines, used in the context of deep sea offshore exploitation (down to 3000 m water depth). The first step of this work consisted in obtaining experimental data on the thermal, mechanical and water diffusion behaviour of insulation materials, particularly of syntactic foams (polymer matrix reinforced with hollow glass microspheres), which are widely used in the thermal insulation of pipelines. The development of experimental tests on industrial multilayered coated structures under representative deep sea conditions (until 300 bar external hydrostatic pressure) represented one of the major aims of this work. The global heat... Tipo: Text Palavras-chave: Thermomechanical modelling; Syntactic foam; Multilayered systems; Thermal insulation; Modélisation thermomécanique; Mousse syntactique; Systèmes multicouches; Isolation thermique. Ano: 2007 URL: http://archimer.ifremer.fr/doc/2007/these-2491.pdf Registros recuperados: 3 Primeira ... 1 ... Última

Empresa Brasileira de Pesquisa Agropecuária - Embrapa Todos os direitos reservados, conforme Lei n° 9.610 Política de Privacidade Área restrita		Embrapa Parque Estação Biológica - PqEB s/n° Brasília, DF - Brasil - CEP 70770-901 Fone: (61) 3448-4433 - Fax: (61) 3448-4890 / 3448-4891 SAC: https://www.embrapa.br/fale-conosco