We consider the equilibrium of a sail under a given aerodynamic field of external forces. The sail is considered to be an ideally flexible structure, having the behaviour of a network of stress unilateral strings: all the internal efforts are traction efforts. This model leads to a Non Convex Optimisation Problem and a complete theory can be established, leading to relevant results of uniqueness for the field of stresses, even if configurations of equilibrium are not unique.
Bibliographical noteFunding Information:
The authors thank F. Hauville who provided the reference configuration and performed the flow computation, and the Regional Council of Haute Normandie for its financial support.
ASJC Scopus subject areas
- General Materials Science
- Mechanics of Materials
- Mechanical Engineering
- General Physics and Astronomy