L’Institut de Formation du Caoutchouc (IFOCA), basé à Vitry-sur-Seine (Val-de-Marne), a annoncé le lancement de deux nouvelles formations numériques.
Après le succès de sa première Formation en ligne ouverte à tous (Massive open online course ou MOOC), le centre de formation français aux caoutchoucs IFOCA vient de lancer deux sessions SPOC (Small private online course), des formations payantes abordant les thèmes suivants : Modélisation du comportement mécanique pour la simulation numérique et surtout Analyse de défaillance des pièces en caoutchouc.(…)
L’édition 2017 du catalogue formations du Cetim est parue ! Porte ouverte vers les technologies du futur et les dernières innovations tous secteurs confondus, il présente une large palette de solutions de formation (intra, inter, flash, e-learning, etc.). Résolument tournée vers l’avenir, l’offre comprend plus de 350 formations et 700 sessions interentreprises dispensées au plus près des industriels.
A case study published in « Case Studies in Engineering Failure Analysis » – April 2016.
In this study, the fracture failure of the 4Cr13 stainless steel linkage components in circuit breakers was studied. The microstructure and morphology of fracture surface were observed by scanning electron microscopy and optical microscopy. A micro-Vickers tester measured the hardness of the components. The tensile strength and strain of the components were determined by a universal testing machine. The results show that fracture failure mode was quasi-cleavage fracture, and some dimples and edges of cleavage were present on the fracture surface.
An article about a case study published in « Case Studies in Engineering Failure Analysis » – april 2016.
A temporary threadbar used for precast segmental construction broke during the post-tensioning stage before reaching the service load. Failure analysis showed that the premature failure of the bar was due to the presence of an arc strike. The arc strike effects on the material and threadbar integrity are considered.
Le mardi 8 novembre 2016, le Cetim et FCBA inaugurent leur nouvelle plateforme d’essai sismique à Bordeaux.
Pour répondre aux exigences accrues post-Fukushima de stabilité des équipements des 12centrales nucléaires en conditions sismiques, le FCBA, Forêt Cellulose, Bois-construction Ameublement et le Cetim, Centre technique des industries mécaniques, allient leurs expertises et donnent naissance à une nouvelle plateforme d’essais sismiques : Tesseract.
An article published in the « International Journal of Engineering Science and Computing« , June 2016.
Spring steel is a prominent piece of material in industrial and automotive application. Hydrogen embrittlement (HE) is an inherent phenomenon, which will occur during the course of service life, at the same time it has to sustain a variety of loads acting on it. Among all the wear of spring steel plays a vital role. Hydrogen embrittlement leads for pre mature failure of the component. In view of this, an attempt was made in this experimental study to performance of hydrogen embrittled spring steel (EN-47 / SAE 6150/SUS 10) under the dry sliding condition. The specimen preparation and the experimentations have been carried out according to the ASTM standards. The experiments performed based on plan of taguchi technique. Cathodic charging is having been adopted for the embrittlement of the spring steel material. A known level of embrittlement has made, wear test has been carried out. Results have shown that, load and sliding distance is more pronounced on the wear of the embrittled spring steel material rather than speed.
A case study published in « Case Studies in Engineering Failure Analysis » – april 2016.
This paper investigates the failure of a rocker arm shaft of a passenger car. The shaft failed by brittle fracture across one of the four holes supporting the shaft into the cylinder head. The running distance of the engine just before failure was 40,626 km. These cracks may have been induced in the shaft by the non-uniform cooling during quenching in the course of heat treatment, or may be nucleated by repeated loading during service. This premature failure has occurred by the rapid crack propagation because of the lower fracture toughness of the martensite.