Bolted Joint Analysis Calculator

Basic joint-load sharing check for a preloaded bolted joint under external tensile load.

Bolt preload Fi (N)External applied load P (N)Joint stiffness ratio C (0–1)Calculate

Equations

Bolt load Fb = Fi + C·P. Remaining clamp force Fm = Fi − (1−C)·P.

Assumptions

Linear elastic joint members and bolt, no gasket, static loading. Joint separates if Fm ≤ 0 — check this in the result.