Morphological and Mechanical Investigation of Double-Layer Reciprocal Structures

Cyril Douthe (1) , Olivier Baverel (2, 3)

1 IFSTTAR/MAST/EMMS - Expérimentation et Modélisation des Matériaux et des Structures
2 msa - Matériaux et Structures Architecturés
3 navier umr 8205 - Laboratoire Navier

The simple connection conditions of reciprocal structures means that technological constraints become geometrical constraints and bending moments are increased. Geometrical constraints can be dealt by using form-finding methods such as a dynamic relaxation algorithm, but resisting bending moments to gain stiffness is difficult to accomplish without increasing the weight of the structure. For standard reticulated structures, common strategies consist in introducing curvature in the structure and/or modifying the structure into a double-layer space structure. The proposed paper is thus an attempt to apply these strategies to reciprocal structures and to develop spherical domes with a structural thickness. Several configurations will be investigated and compared in term of geometrical feasibility and structural performance. Design analysis, Form-finding

Mots clés: RELAXATION; STRUCTURE; COMPORTEMENT ELASTIQUE

Domaines: Mécanique des structures [physics.class-ph]; Mécanique des structures [physics.class-ph]; Electrons fortement corrélés [cond-mat.str-el]; Physique Atomique [physics.atom-ph]

Cyril Douthe, Olivier Baverel. Morphological and Mechanical Investigation of Double-Layer Reciprocal Structures. Nexus Network Journal, 2014, 16 (1), 17p. ⟨hal-01073331⟩