maximum bending moment under a single wheel in terms of x₁
M₀=P(EI/64k)¹/⁴[ Eq. 1]
x₁=π4(4EI/k)¹/⁴[ Eq. 2]
Rearrange Eq. 2 with x₁ as the main variable, substitute in Eq. 1, and simplify, to get:
M₀=0.318Px