{"id":3661,"date":"2017-02-06T15:22:35","date_gmt":"2017-02-06T14:22:35","guid":{"rendered":"https:\/\/www.initiatives-coeur.fr\/actus\/?p=3661"},"modified":"2017-02-09T10:42:34","modified_gmt":"2017-02-09T09:42:34","slug":"quen-mat-dinitiatives-coeur","status":"publish","type":"post","link":"https:\/\/initiatives-coeur.fr\/actus\/quen-mat-dinitiatives-coeur-3661","title":{"rendered":"Qu’en est-il du m\u00e2t d’Initiatives Coeur?"},"content":{"rendered":"

Suite \u00e0 la casse de la t\u00eate de m\u00e2t d\u2019Initiatives-C\u0153ur apr\u00e8s 6 jours de course seulement, Tanguy de Lamotte a d\u00fb se rendre \u00e0 l’\u00e9vidence: \u00a0le m\u00e2t fragilis\u00e9 ne supportera pas 20 000 milles suppl\u00e9mentaires\u00a0:<\/p>\n

\u00a0\u00ab\u00a0Le m\u00e2t est tr\u00e8s ab\u00eem\u00e9, bien plus que ce que l\u2019on pensait. Lorsque la t\u00eate de m\u00e2t s\u2019est arrach\u00e9e, les drisses ont d\u00e9coup\u00e9 le m\u00e2t de part et d\u2019autre, le m\u00e2t peut donc \u00e0 tout moment s\u2019ouvrir en deux….\u00a0L\u2019avarie est trop grave pour envisager de continuer le tour du monde, mais elle me permet tout de m\u00eame de ramener mon bateau \u00e0 bon port. \u00bb<\/em><\/strong><\/p>\n

C’est \u00a0ainsi que le Vend\u00e9e Globe a pris une toute autre tournure \u00a0pour notre skipper \u00a0du coeur, contraint d’abandonner \u00a0la course \u00a0et tous ses espoirs de performance sportive…<\/p>\n

Mais \u00a0faisant preuve de \u00a0courage et de \u00a0t\u00e9nacit\u00e9, Tanguy s’est battu jusqu’au \u00a0bout pour \u00a0tenir ses \u00a0engagements au pr\u00e8s de la cause qu’il d\u00e9fend avec M\u00e9c\u00e9nat Chirurgie Cardiaque. En ramenant son bateau \u00e0 bon port jusqu’aux Sables d’Olonne, il a r\u00e9ussi \u00e0 mobiliser le grand public pour \u00a0atteindre son objectif solidaire: 43 enfants malades du coeur vont \u00a0pouvoir \u00eatre op\u00e9r\u00e9s et sauv\u00e9s \u00a0gr\u00e2ce au projet Initiatives Coeur .<\/strong><\/p>\n

Apr\u00e8s une longue expertise de la fameuse t\u00eate de m\u00e2t, Anne-Claire, ing\u00e9nieur en charge du bureau d’\u00e9tudes d’Initiatives-Coeur, \u00a0nous livre quelques explications sur l’avarie subie par Tanguy.<\/p>\n

\"img_3645\"\"img_3626\"<\/p>\n

Que sait-on de\u00a0l\u2019avarie subie par Tanguy ?\u00a0<\/span><\/h2>\n

C\u2019est arriv\u00e9 soudainement et la t\u00eate de m\u00e2t a cass\u00e9 assez proprement. Ensuite, comme les drisses<\/strong> (cordage servant \u00e0 hisser une voile en t\u00eate de m\u00e2t) \u00a0sortent au \u00a0plus haut du m\u00e2t, elles ont fini par d\u00e9couper le m\u00e2t en pendouillant. Les d\u00e9chirures s\u2019arr\u00eatent net aux renforts\u00a0de bastaques<\/strong><\/a> (les bastaques relient un point du m\u00e2t \u00e0 l’arri\u00e8re du bateau, emp\u00eachant le m\u00e2t de basculer vers l’avant).<\/span><\/p>\n

\"imagebateauic\"<\/p>\n

Quel est l\u2019historique du m\u00e2t ?\u00a0<\/span><\/h2>\n

Le m\u00e2t d\u2019initiatives-Coeur \u00e9tait d\u00e9j\u00e0 celui d\u2019Ak\u00e9na V\u00e9randas qui a particip\u00e9 au Vend\u00e9e Globe 2012. Il comptait\u00a0bien s\u00fbr pas mal de milles. Mais autant on peut changer le gr\u00e9ement au moindre doute, autant le m\u00e2t n\u2019est \u00a0pas une pi\u00e8ce d\u2019usure.\u00a0<\/span><\/p>\n

Le m\u00e2t fait-il l\u2019objet d\u2019un contr\u00f4le sp\u00e9cifique avant les courses ?\u00a0<\/span><\/h2>\n

Oui il \u00e9tait contr\u00f4l\u00e9 chaque ann\u00e9e par un cabinet d\u2019expertise. C\u2019est non seulement obligatoire, mais on peut aussi renouveler l\u2019op\u00e9ration en cas de doutes, suite \u00e0 un choc par exemple.\u00a0Gr\u00e2ce aux ultrasons, on arrive \u00e0 d\u00e9celer d\u2019\u00e9ventuels d\u00e9fauts du composites, qui peuvent \u00eatre des d\u00e9collements ou des fissures des tissus. L\u2019ultrason traverse la mati\u00e8re, s\u2019il y a une rupture\u00a0quelque part, le signal ne passe plus.\u00a0<\/span><\/p>\n

Peut-on parler de vieillissement ou de fatigue du m\u00e2t ?\u00a0<\/span><\/h2>\n

En th\u00e9orie, il n\u2019y aurait pas de ph\u00e9nom\u00e8ne de fatigue sur le composite carbone. M\u00eame si les experts ne sont pas tous aussi cat\u00e9goriques sur la question. Par contre, tous s\u2019accordent \u00e0 dire \u00a0que l\u2019avarie n\u2019\u00e9tait pas pr\u00e9visible en tant que telle.\u00a0<\/span><\/p>\n

Le m\u00e2t est il r\u00e9parable ?\u00a0<\/span><\/h2>\n

Oui, il est pr\u00e9vu de regreffer la t\u00eate au m\u00e2t. Et c\u2019est le fabricant du m\u00e2t lui-m\u00eame qui se chargera du chantier. Une r\u00e9paration de ce type reste exceptionnelle, mais la cassure est nette, et les \u00a0sp\u00e9cialistes du composite ont valid\u00e9 la faisabilit\u00e9.\u00a0<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

Suite \u00e0 la casse de la t\u00eate de m\u00e2t d\u2019Initiatives-C\u0153ur apr\u00e8s 6 jours de course seulement, Tanguy de Lamotte a d\u00fb se rendre \u00e0 l’\u00e9vidence: \u00a0le m\u00e2t fragilis\u00e9 ne supportera pas 20 000 milles suppl\u00e9mentaires\u00a0: \u00a0\u00ab\u00a0Le m\u00e2t est tr\u00e8s ab\u00eem\u00e9, bien plus que ce que l\u2019on pensait. Lorsque la t\u00eate de m\u00e2t s\u2019est arrach\u00e9e, les … Continuer la lecture de « Qu’en est-il du m\u00e2t d’Initiatives Coeur? »<\/span><\/a><\/p>\n","protected":false},"author":3,"featured_media":3662,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-3661","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-non-classe"],"yoast_head":"\nQu'en est-il du m\u00e2t d'Initiatives Coeur? - Initiatives C\u0153ur<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/initiatives-coeur.fr\/actus\/quen-mat-dinitiatives-coeur-3661\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Qu'en est-il du m\u00e2t d'Initiatives Coeur? - Initiatives C\u0153ur\" \/>\n<meta property=\"og:description\" content=\"Suite \u00e0 la casse de la t\u00eate de m\u00e2t d\u2019Initiatives-C\u0153ur apr\u00e8s 6 jours de course seulement, Tanguy de Lamotte a d\u00fb se rendre \u00e0 l’\u00e9vidence: \u00a0le m\u00e2t fragilis\u00e9 ne supportera pas 20 000 milles suppl\u00e9mentaires\u00a0: \u00a0\u00ab\u00a0Le m\u00e2t est tr\u00e8s ab\u00eem\u00e9, bien plus que ce que l\u2019on pensait. 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