Riveted Joint Calculator | StrokeForge Engineering

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Joint Configuration

Rivet diameter d

Nominal shank diameter

Number of rivets n

—

Total rivets in joint

Rivets per row n_r

—

For net section check

Plate thickness t

Thinnest plate (bearing)

Plate width b

Gross plate width

Applied force F

Design value (factored)

Material

γ_M2 (rivet/bearing)

Partial safety factor

γ_M0 (net section)

EN 1993-1-1 §6.1

Results

—

Enter values

① Rivet Shear

A_s per rivet—

τ applied—

τ_Rd—

η shear—

—

② Plate Bearing

A_ot per rivet—

σ_ot applied—

σ_ot,Rd—

η bearing—

—

③ Net Section

A_net—

σ_net applied—

σ_Rd = fy/γM0—

η net section—

—

Rivet hole too large relative to plate width — net section very small.

Rivet spacing may be insufficient — verify minimum pitch ≥ 3d per EC3.

Double shear: two shear planes active — rivet capacity doubled.

Diagram

Method — Rivet Joint Checks

① Rivet shear

Shear area per rivet:

As = π × d² / 4

Applied shear stress:

τ = F / (n × m × As)

Design resistance (0.6 × fu):

τ_Rd = 0.6 × fu / γM2

m = shear planes (1 or 2)

② Plate bearing

Bearing area per rivet:

A_ot = d × t

Applied bearing stress:

σ_ot = F / (n × d × t)

Design resistance:

σ_ot,Rd = 2.5 × fu / γM2

③ Net section

Net area at critical row:

A_net = (b − n_r × d) × t

Applied normal stress:

σ_net = F / A_net

Design resistance:

σ_Rd = fy / γM0

Shear planes

Single shear (m=1): lap joint — one shear plane per rivet
Double shear (m=2): butt joint with cover plates — two shear planes, higher capacity
Governing failure mode = highest utilisation