Snap-Fit Beam Calculator
Version 1.00
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Inputs
⌁
Geometry and maximum-stress location
< Maximum-stress location >
TIP · x=0
BASE · x=L
x is measured from the free tip toward the fixed base.
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Results
Operating load P
—
N
Maximum bending stress σ
—
MPa
Maximum strain ε
—
— %
Maximum-stress location x
—
mm
Equations and assumptions
Beam type
Section properties
Operating load
P=YE / ∫₀ᴸ[x²/I(x)]dx
P=YE / ∫₀ᴸ[x²/I(x)]dx
Stress and strain
σ(x)=Pxc(x)/I(x)
ε=σ/E
σ(x)=Pxc(x)/I(x)
ε=σ/E
Linear elasticity, small-deflection Euler–Bernoulli beam behavior, and a concentrated load at the free tip are assumed. Fillet stress concentration, shear deformation, material nonlinearity, molding anisotropy, and creep are not included. For the triangular section, w is shown only for geometry and does not affect I or the stress calculated about this bending axis.