Section Modulus at Point i About y-Axis

W_{y, i} = \frac{I_{y} \cdot I_{z} - {I_{y z}}^{2}}{I_{z} \cdot z_{i} - I_{y z} \cdot y_{i}}

r	Distance to element dA
T_c	Temperature change
ΔT	Temperature gradient
F_N	Axial force perpendicular to the support
p₀	Air pressure on the fluid surface

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