vendredi 30 novembre 2007

Equilibrium shape of a tree branch

This has been published : C.R. Acad. Sci. Paris, t. 311,série II, pp 37-43, 1990. The whole text with the equations may be may be downloaded here. Abstract The shape of tree branches is computed using the theory of flexure of beams. Numerical computation is used and takes into account large displacements and growth. The coupling between elastic bending and growth results in a branch shape having an inflection point connected with a permanent deformation. Growth stresses The study of stresses in living materials has been the... [Lire la suite]