The goal of the thesis assignment is to design a simple slingshot shooting simulation that reflects the behavior of the slingshot and projectile during the shot. The classic Y-shaped frame sling has the elastic tube/thread made of a rubber material that can be well described with a hyperelastic material model. Before considering the movement of the projectile, we determined the necessary material properties of the elastic thread with the help of a tensile testing. For the theoretical analysis of the mechanical characteristics of elastic, we used two rheological hyperelastic material models, Mooney-Rivlin and Neo-Hooke. By comparing the theoretically obtained curve with the experimental one, we determined the material parameters of the elastic, with the help of which we then calculated the amount of potential energy that is stored in it during pulling back the elastic of the slingshot. Assuming that during the shot all the potential energy stored in the slingshot is converted into kinetic energy, we calculated the launch speed/initial velocity of the projectile and then through a simple simulation analyzed the influence of the initial velocity, launch angle and aerodynamic resistance on the movement of the projectile. We have concluded that the choice of hyperelastic material model affects the amount of energy that is stored in the sling during tensioning, which in turn affects the launch speed and the movement of the projectile.
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