Please write a Python code to solve the question. For an input of Torque = 1000knmm, the torsional rigidity equals 5.079 x 10^13mm^2
Problem 1. Determine the torsional rigidity (torsional stiffness) of the four-cell wing section shown below.Use G=25 GPa.
Hint: Apply a torque to the section and calculate the rate of twist. Torsional rigidity is the ratio between the applied torque and the rate of twist.
4
3
2
1
II
111
IV
7
8
5
6
Wall
12 23 78 67 762 812 0.915 0.915 A = 161,500 Am = 291,000
34 56 45 812 1,525 0.915 0.711 An =291,000 Arv = 226,000
45i 356 1.220
36 406 1.625
27 356 1.220
18 254 0.915
Peripheral length (mm) Thickness (mm) Cell areas (mm2)