Les arbres abattus en tant que système de protection contre les chutes de pierres : impact sur tiges de bois vert simplement appuyées, étude expérimentale et numérique

International audience; In this paper, experimental and numerical studies carried out to determine the efficacy of felled trees made structure are presented. In this research work, felled trees are simplified and represented by simply supported fresh wood stems. The aim of this study is to analyze the impact of a projectile on those stems. The energy transfers between the projectile and the stem during an impact and the dynamic response of the stems are the two main subjects of this study.