Publication

Poutres MilliNewton – essai de rupture en flexion

Thomas Maeder
2012
Reports

Abstract

Comparaison de la force de rupture des poutres MilliNewton en deux variantes: 1) conducteur Au fin ESL 8837G (classique), et 2) conducteur Ag:Pd ESL 9635B (pas idéal ; à remplacer par ESL 9562G). La force de rupture d'une nouvelle série de poutres MilliNewton, Bd, avec conducteurs en Ag:Pd ESL 9635G, a été testée et comparée avec celle de la version précédente, Bc, avec conducteurs en or fin. Les résistances mécaniques à court terme des deux séries de poutres sont comparables, avec une marge de sécurité par rapport à la force nominale d'un facteur supérieur à 3. Cependant, comme les compositions Ag:Pd fortement frittées telles que ESL 9635G ont un effet délétère sur la résistance à long terme (fatigue statique), il est recommandé d'utiliser une autre composition pour les conducteurs, plus riche en Ag, telle que Ag:Pd:Pt ESL 9562.

Official source

https://infoscience.epfl.ch/entities/publication/62f7f145-7952-4587-8f13-9ae961b1fbfe

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Thomas Maeder
2012
Reports

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/62f7f145-7952-4587-8f13-9ae961b1fbfe

About this result

Related concepts (3)

Fish fin

Fins are distinctive anatomical features composed of bony spines or rays protruding from the body of Actinopterygii and Chondrichthyes fishes. They are covered with skin and joined together either in a webbed fashion, as seen in most bony fish, or similar to a flipper, as seen in sharks. Apart from the tail or caudal fin, fish fins have no direct connection with the spine and are supported only by muscles. Their principal function is to help the fish swim.

Fin

A fin is a thin component or appendage attached to a larger body or structure. Fins typically function as foils that produce lift or thrust, or provide the ability to steer or stabilize motion while traveling in water, air, or other fluids. Fins are also used to increase surface areas for heat transfer purposes, or simply as ornamentation. Fins first evolved on fish as a means of locomotion. Fish fins are used to generate thrust and control the subsequent motion.

Pelvic fin

Pelvic fins or ventral fins are paired fins located on the ventral surface of fish. The paired pelvic fins are homologous to the hindlimbs of tetrapods. In actinopterygians, the pelvic fin consists of two endochondrally-derived bony girdles attached to bony radials. Dermal fin rays (lepidotrichia) are positioned distally from the radials. There are three pairs of muscles each on the dorsal and ventral side of the pelvic fin girdle that abduct and adduct the fin from the body.