**Related Resources: calculators**

### Equilateral Triangle Flat Plate Stress and Deflection Equation and Calculator

Equilateral triangle; all edges simply supported with uniform loading over entire plate Stress and Deflection Equation and Calculator.

Per. Roarks Formulas for Stress and Strain for flat plates with straight boundaries and constant thickness

Preview: Parallelogram plate uniform loading over entire plate Stress and Deflection Calculator

Equilateral Triangle Plate
Uniform Loading Over Entire Plate |

Stress at x = 0, z = -0.062a

Stress at x = 0, z = 0.129a

Deflection at x = 0, z = 0

Where:

q = Applied load (force) (lbs/in^{2})

v = Poisson’s ratio (assumed to be 0.3)

E = Modulus of Elasticity (lb/in^{2})

a = Width of plate (in)

σ = stress, (lbs/in^{2})

y = Deflection (in)

Reference:

Roarks Formulas for Stress and Strain, 7th Edition