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Stress between load and support points
Stress at center of constant cross section
Deflection between load and support points
Maximum deflection at load
Where:
| E = |
Modulus of Elasticity |
psi |
(N/m2) |
| I = |
Moment of Inertia |
in4 |
(m4) |
| W = |
Load |
lbs |
(N) |
| s = |
Stress at the cross-section being evaluated |
Lbs/in2 |
(N/m2) |
| y = |
Deflection |
inches |
(m) |
| x = |
Some distance as indicated |
inches |
(m) |
| l = |
Some distance as indicated |
inches |
(m) |
| Z = |
section modulus of the cross-section of the beam |
|
|
| Z = |
I ÷ distance from neutral axis or plane to extreme fiber
(edge) |
|
|
| c = |
Distance from extreme fiber edge to neutral plane |
inches |
(m) |
|
