Second Moment of Area of a Square Angle formulas |
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\( I_{x} \;=\; \dfrac{ t \cdot \left( w - C_y \right)^3 + w \cdot \left[ w - \left( w - C_y \right) \right]^3 - \left( w - t \right) \cdot \left[ w - \left( w - C_y \right) - t \right]^3 }{3} \) \( I_{x} \;=\; \dfrac{ t \cdot \left( w - C_y \right)^3 + w \cdot \left[ w - \left( w - C_y \right) \right]^3 - \left( w - t \right) \cdot \left[ w - \left( w - C_y \right) - t \right]^3 }{3} \) \( I_{x1} \;=\; I_{x} + A\cdot C_{y} \) \( I_{y1} \;=\; I_{y} + A\cdot C_{x} \) |
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| Symbol | English | Metric |
| \( I \) = moment of inertia | \( in^4 \) | \( mm^4 \) |
| \( A \) = area | \( in^2 \) | \( mm^2 \) |
| \( C \) = distance from centroid | \( in \) | \( mm \) |
| \( t \) = thickness | \( in \) | \( mm \) |
| \( w \) = width | \( in \) | \( mm \) |
