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Beam Calculator
Reactions, SFD, BMD, deflection and stress for any supports, loads and cross-section.
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Plate with a Hole — Stress Concentration (Kt) Calculator
Get Kt, the peak stress at the hole and a safe/marginal/yields verdict for a plate with a central hole in tension — then check the full hand calculation.
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Hole Near an Edge — Stress Concentration (Kt) Calculator
Find Kt and the stress at the free edge and both sides of a hole close to a plate edge, the load on the ligament, and whether it yields.