Q

What specific weight, elastic modulus and wave speed should be entered into the PDA / GRLWEAP when testing / analyzing ductile cast iron piles (DYWIDAG brand)?

A

The recommended parameters for the material of these piles are: Specific weight 69.2 kN/m3 or 442 lb/ft3 / Elastic Modulus: between 140 and 165 GPa or 20,000 to 24,000 ksi / Wave speed: 4,400 to 4,800 m/s or 14,500 to 15,900 ft/s