Numerically simulating the impact of hail in photovoltaic

A numerical model of low speed impact from hail to photovoltaic panel is created. The hail stone is modeled with smoothed particle hydrodynamics method. The photovoltaic panels are modeled with finite elements like a laminate structure. The glass is modeled with brittle fracture material model. Cracks patterns and stress in silicon cells for different location of impact are obtained.