Homework Statement
I have a Mohr-Coulomb plasticity model with isotropic hardening on the cohesion c(k). The angle of internal friction is constant. k=sqrt((2/3)*(de)'Q*de), where de is the time derivative of the plastic strain. Q is diag[1,1,1,0.5,0.5,0.5]. It is a triaxial test assuming...
[b]1. I need to simulate a reverse bungee ejection seat (carnaval ride). This is a vehicle attached to two masts with bungee cords. I know the mass, air drag and acceleration (4.8 g). The first step is to calcutate the spring constants of the bungee cords and the damping constant (relative...