A paper published in the « Indian Journal of Science and Technology« , august 2016.
A bellows expansion joint is an assembly of two or more bellows which help to tackle expansion or contraction in the system where it is designed to fit in. It was found, various independent researchers did lot of research in the design and geometry of bellows expansion joint but a review of all is scare, they have put forth the different possible features of bellows design in this paper. (…)
A paper presented at the « International Conference on Processing of Materials, Mineral and Energy », 29th and 30th july 2016, PACE Institute of Technology & Sciences, India. It had been published by Elsevier.
This paper deals with the failure investigations of the first stage gas turbine blade of 30MW gas turbine. This blade is manufacture with of nickel based super alloy IN738. The main focus of the paper is to found the causes of failure of the blade. By the investigations, it is found that the blade failure takes place due to the combined effect of erosion, oxidation, overheating, and hot corrosion.
More at : http://www.pmme.co.in/papers/EMT-087.pdf
An article published in the « International Journal of Engineering Science and Computing », June 2016.
This paper study failure observed in riveted joint in buses and give solution to overcome this failure. In this stress analysis, fatigue analysis of pop up (Blind) riveted joint and Solid riveted lap joints are studied and from that predict the maximum shear strength of riveted joint to resist shear failure and no. of cycles of riveted joints. Also study the behavior of stresses and fracture observed on the Riveted due to stresses. This study is done by CAD software CATIA V5, CAE software Abaqus and correlate with analytical solution.
Le logiciel Procor acquis au Cetim par ECT lui permet d’optimiser la protection cathodique de ses filtres et réservoirs. Un atout concurrentiel.
Suite à un stage au Cetim sur la protection cathodique, Fabrice Aniel, le Président d’ECT, décide d’acheter Procor. Ce logiciel a été développé par le Cetim, dans le cadre d’un partenariat de recherche, pour optimiser la protection cathodique des installations métalliques en milieu aqueux.
Lire l’article : ECT – Cetim – Centre technique des industries mécaniques
An article on power transmission tower structure published in « Case Studies in Engineering Failure Analysis » of october 2015.
In this study, the structural susceptibility of a 400 kV power transmission tower as well as various methods of determining the critical areas of above mentioned structure are investigated.The critical areas of the transmission tower through impact factor and capacity-to-demand ratio are determined so that it will be more feasible to propose retrofitting methods for the damaged structure in order to prevent the future risks. It is concluded that the impact factor corresponds with the capacity-to-demand ratio in 41% of APM cases.
Read more
A case study published in « Case Studies in Construction Materials », 06/2015.This paper presents results of a failure analysis study to characterize the damage phenomenon that occurred in prestressed steel cables of a suspension bridge. Results from fatigue tests and fractographic study allow to the conclusion that the main cause of cable failure, which led to a collapse of the bridge, was stress corrosion cracking (SCC).
An article published in the « International Journal of Ethics in Engineering & Management Education » of july 2015.
Compress blade fails under several factors like high cycle fatigue, due to high rotational velocity, corrosiveness area, due to impinging foreign particle on compressor blade and also hard landing. This paper presents the failure analysis of compressor blade of helicopter engine.
L’analyse de défaillance est un processus méthodique permettant un diagnostic efficace des causes des différents modes de défaillance: rupture, usure, corrosion. La connaissance des origines des avaries facilite la mise en œuvre d’actions correctives et préventives afin qu’elles ne se reproduisent pas.
Pour l’industriel, fabricant ou utilisateur, une défaillance a souvent de lourdes conséquences :
– arrêt de production et pertes d’exploitation,
– litiges commerciaux et baisse d’image de marque,
– accidents humains,
… donc des conséquences financières!
Les experts Cetim et de ses centres associés : Cetim-Cermat, Cetim-Certec, Cetim-Ctdec, et partenaires : LRCCP(Laboratoire de Recherches et de Contrôle du Caoutchouc et des plastiques), ont avant tout un rôle de conseil !
Sollicitez les, ils vous accompagneront dans votre démarche !
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.(…)
Source : L’IFOCA propose deux nouvelles formations numériques – Plastiques & Caoutchoucs Magazine
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.
