Les territoires de l'armée en France métropolitaine

Les implantations militaires françaises obéissent à un modèle spatial combinant des auréoles, à partir du Nord-Est, et des diagonales dans un hexagone

The French Atlantic Littoral

There are no author-identified significant results in this report

Effect of notch root radius on the creep failure mechanisms on polyamide 6 : application of facture mechanics approaches

International audienceThe polyamide 6 (PA6) under study exhibits non-linear time dependent (viscoplastic)deformation when submitted to steady load (creep) at room temperature. An experimentaldatabase consisting of creep tests performed on notched round bars with various notch rootradii was built. Failure mechanisms of the PA6 material were investigated thanks tocomprehensive microscopic examinations of deformed and broken specimens. Globalapproach of fracture mechanics for creeping solids was applied and showed its limits.Alternatively, the local approach of fracture mechanics was attempted, with the help of finiteelement analysis. It was shown that this approach could successfully capture main featuresof creep damage mechanisms of the PA6 material, which lead to complete failure

Dix années d'utilisation des satellites d'observation de la terre

Regrain Raymond. Dix années d'utilisation des satellites d'observation de la terre. In: Bulletin de l'Association de géographes français, N°489-490, 59e année, Août-décembre 1982. pp. 272-273

Le colloque Télédétection, informatique, ressources naturelles, Amiens, 27-28 mai 1975

Regrain Raymond. Le colloque Télédétection, informatique, ressources naturelles, Amiens, 27-28 mai 1975. In: Hommes et Terres du Nord, 1976/1. pp. 121-122