ABSTRACT
Damage from hail impacts is greater globally and poses a significant risk to the roofing materials. This paper presents the artificial hail impacts on the IBR 686 metal sheets with various thicknesses and grades. The objectives were to investigate the damage made to the roof sheets by artificial hailstones and to determine the performance and thickness of IBR sheet profiles while meeting stiffness criterion. The experimental lab test was conducted using the dynamic pneumatic gun to launch artificial hailstones of varying diameters onto samples of roof sheets of various thicknesses and grades. The numerical experiments were also conducted using Finite Element Model through Abaqus Explicit Software. There is an inverse relationship between the yield strength and dent depth brought on by ice ball impact. Moreover, it was found that the G300 IBR sheet which has a 0.46mm thickness, is the most susceptible to hail impact.
