We conducted a finite element model to analyze the stresses and strains of a rib membrane, for various angles of attack.
The results are not even approximate, until now. I use a discretization type by quadrangular shell elements, acting as menbrane and plate.
The loads to be applied are puntual forces on the nodes of the contour, with numeric value and direction indicated by an XFLR5 analysis.
Furthermore, I should study better the mechanical properties of ripstop nylon material.
Finally, the boundary conditions consist of four thin lines (beam element) that connect the four anchor points of the rib, with a point of the main
karabiner, in which I impose all rotational and translational movements zero. All analysis in 2D plane.
Fig 1. Shell F12
Fig 2. Shell MMIN
Fig. 3. V23 shell shear
The results are not even approximate, until now. I use a discretization type by quadrangular shell elements, acting as menbrane and plate.
The loads to be applied are puntual forces on the nodes of the contour, with numeric value and direction indicated by an XFLR5 analysis.
Furthermore, I should study better the mechanical properties of ripstop nylon material.
Finally, the boundary conditions consist of four thin lines (beam element) that connect the four anchor points of the rib, with a point of the main
karabiner, in which I impose all rotational and translational movements zero. All analysis in 2D plane.
Fig 1. Shell F12
Fig 2. Shell MMIN
Fig. 3. V23 shell shear