Structural & Mechanical Calculators

Basic Joint Diagram

Bolt joint under dynamic loading — load fluctuation split between bolt and clamped parts.

User inputs

90%
kN
MPa

Parameters

Thread & material
Tensile stress area At
Yield strength Rp0.2
Joint stiffness Cm

Key results

Initial preload Fi
Bolt fluctuation Pb
Clamped-part fluctuation Pm
Total fluctuation P

Schematic only — stiffness lines scaled from Cm; force levels from your inputs.

ParameterValueUnitNotes
Load at yield F0.2kNRp0.2 × At
Stress amplitude σatMPaPb / (2 At)
Stress range ΔσMPaPb / At
Clamped-part fluctuation PmkNFi − Fm