Dear LAMMPS community,
I am setting up a granular simulation and I want to ensure I am calculating the normal and tangential elastic constants (K_n and K_t), as well as the damping parameters, correctly for pair_style gran/hooke/history.
I am trying to map my macroscopic material properties to the linear spring-dashpot model. My known parameters are:
- Young’s modulus: E
- Poisson’s ratio: \nu
- Particle diameter: d (assuming two identical interacting particles)
- Particle density: \rho
- Coefficient of restitution: e
Could you please suggest equation to calculate the K_n, gamma_n and K_t inputs forgran/hooke/historybased on above material properties?