Publication

Design and durability of titanium adhesive joints for marine applications

Véronique Michaud, Basile Golaz, Sébastien Lavanchy
2013
Journal Articles

Résumé

Comparative measurements of strength and Griffith's critical strain energy release rate G(Ic) were carried out on adhesively bonded joints with different surface treatments of titanium, before and along 13 weeks of accelerated aging in salted or deionized water at 50 degrees C. Thermo-mechanical measurements were carried out on the bulk epoxy adhesive, with the same aging conditions. A combined surface treatment of sanding, degreasing and chemical etching showed the best durability, whereas a treatment using an additional sulphuric anodic oxidation showed the best adhesion before aging. Aging decreased the strength and the critical strain energy release rate of bonded joints by 30-70%. Joint design with a finite element calculation using a cohesive failure law at the interface, accounting for surface treatment, aging effects and safety factors, can thus be performed, from a limited set of experimental values. (C) 2013 Elsevier Ltd. All rights reserved.

Source officielle

https://infoscience.epfl.ch/entities/publication/50928e88-b407-4d4c-9399-20b3d3c0fc24

À propos de ce résultat

Cette page est générée automatiquement et peut contenir des informations qui ne sont pas correctes, complètes, à jour ou pertinentes par rapport à votre recherche. Il en va de même pour toutes les autres pages de ce site. Veillez à vérifier les informations auprès des sources officielles de l'EPFL.

Véronique Michaud, Basile Golaz, Sébastien Lavanchy
2013
Journal Articles

Résumé

Source officielle

https://infoscience.epfl.ch/entities/publication/50928e88-b407-4d4c-9399-20b3d3c0fc24

À propos de ce résultat

Concepts associés (19)

Aging brain

Aging of the brain is a process of transformation of the brain in older age, including changes all individuals experience and those of illness (including unrecognised illness). Usually this refers to humans. Since life extension is only pertinent if accompanied by health span extension, and, more importantly, by preserving brain health and cognition, finding rejuvenating approaches that act simultaneously in peripheral tissues and in brain function is a key strategy for development of rejuvenating technology.

Anti-aging movement

The anti-aging movement is a social movement devoted to eliminating or reversing aging, or reducing the effects of it. A substantial portion of the attention of the movement is on the possibilities for life extension, but there is also interest in techniques such as cosmetic surgery which ameliorate the effects of aging rather than delay or defeat it. There are many scientists of this movement with different approaches.

Secondary treatment

Secondary treatment (mostly biological wastewater treatment) is the removal of biodegradable organic matter (in solution or suspension) from sewage or similar kinds of wastewater. The aim is to achieve a certain degree of effluent quality in a sewage treatment plant suitable for the intended disposal or reuse option. A "primary treatment" step often precedes secondary treatment, whereby physical phase separation is used to remove settleable solids.

Afficher plus

Publications associées (31)

Selectively permeable microcapsules

Chuen-Ru Li

Microcapsules are appealing containers for delivering active ingredients, such as drugs and cosmetics, or conducting chemical and biological reactions on a small scale. To control the timing and location of release of these encapsulants, the shells of micr ...

EPFL2023

Oxidative Water Treatment: The Track Ahead

Urs von Gunten, Yun Ho Lee

Chemical oxidation has been applied in municipal water treatment for more than a century, initially for disinfection. In the early decades, chlorine disinfection was adopted in the fight against waterborne disease. However, the oxidative properties of chlo ...

2023

Inhibiting de novo ceramide synthesis restores mitochondrial and protein homeostasis in muscle aging

Johan Auwerx, Hao Li, Mario Romani, Dohyun Park, Pirkka-Pekka Untamo Laurila, Changmyung Oh, Martin Rainer Wohlwend, Jean-David Horacio Morel, Xiaoxu Li, Ludger Jan Elzuë Goeminne, Tanes Imamura de Lima, Sandra Rodriguez Lopez, Barbara Moreira Crisol

Disruption of mitochondrial function and protein homeostasis plays a central role in aging. However, how these processes interact and what governs their failure in aging remain poorly understood. Here, we showed that cer- amide biosynthesis controls the de ...

AMER ASSOC ADVANCEMENT SCIENCE2023

Afficher plus