Jean-Charles Delplace

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For several years, digital engineering has increasingly taken a more important place in the strategic issues of mechanical engineering companies. Our proposition is a global approach that enables technical data to be managed and used throughout the product life-cycle. This approach aimed to provide assistance for costing, development and the(More)
PLM is today a reality for mechanical SMEs. Some companies implement PLM systems very well but others have more difficulties. This paper aims to explain why some SMEs do not success to integrated PLM systems analyzing the needs of mechanical SMEs, the processes to implement to respond to those needs and the actual PLM software functionalities. The(More)
In order to reduce the time and the costs of the products development in the sand casting process, the SMC Colombier Fontaine company has carried out a study based on a tooling manufacturing with a new rapid prototyping process. This evolution allowed the adequacy of the geometry used for the simulation to the tooling employed physically in the production.(More)
To improve the performance of extended enterprises, SMEs must be integrated. This integration must be done on several levels, including the PLM level. PLM is underdeveloped in SMEs mainly because of their difficulties in implementing information systems. This work aims to provide a modelling framework to facilitate the implementation of PLM systems in(More)
The authors present 76 cases of trochanteric fractures, treated by a Gamma nail. The minimal follow-up was 6 months, with clinical and roentgenographical check-ups. The mean age was 74 years, with a female majority as classically; the most common cause was a simple fall. Unstable fractures represented 53% of the cases, with 39% subtrochanteric;(More)
Abstract: For several years, digital engineering has increasingly taken a more important place in the strategic issues of mechanical engineering companies. Our proposition is an approach that enables technical data to be managed and used throughout the product life-cycle. This approach aims to provide assistance for costing, development and(More)
The authors have observed a case of lumbo-sacral dislocation with posterior displacement of the fifth lumbar vertebra. There was partial impairment of the roots of the cauda equina. After open reduction and internal fixation, partial recovery was seen. A review of the literature revealed eighteen other similar cases.