Reply To: How to calculate axial stiffness riser

[nhanani4]

The axial stiffness of tether boundary condition at fixed point and on structure that should be key in.

1)What the formula of axial stiffness of tether boundary condition at fixed point it is right EA/L?

2) What the formula axial stiffness of tether boundary condition  on structure it is right EA/L?

3) or the I should calculate total axial stiffness (1/K = 1/K_f + 1/K_s + 1/K_t) and key in data the  axial stiffness of tether boundary condition at fixed point and on structure ? 

4) The value  axial stiffness of tether boundary condition at fixed point and on structure will be same because the data mooring line is same? (tension leg are diameter 1.2m, thickness 0.04m, length 70m, steel tension leg E =2.1x10^11 N/m2)