VDI 2230

Preliminary single-bolt joint assessment to VDI 2230

Relate preload, external axial and shear loads, and joint stiffness to separation, slip, proof and fatigue safety.

Inputs describe one preloaded bolt and an equivalent clamped-part load cone. Multiple bolts, bending and thread stripping require a complete VDI 2230 assessment.

VDI2230

Inputs

Nominal diameter d (mm)Thread pitch P (mm)Property class ISO 898-1Assembly preload F_M (N)Preload scatter (± %)External axial load F_A (N)External shear load F_Q (N)Effective bolt length l_B (mm)Clamped-part length l_P (mm)Effective clamped area A_P (mm²)

Norm factors and advanced inputs

Clamped-part modulus E_P (MPa)Bolt modulus E_B (MPa)Embedding loss ΔF_Z (N)Joint friction coefficient μ (–)Allowable bolt alternating stress (MPa)Axial load amplitude F_A,a (N)Required separation safety S_A (–)Required slip safety S_G (–)

Results

Enter preload, external load and clamped parts.

Model

Transparent preliminary model

All main influencing quantities are shown as inputs or intermediate results. Check factors, material data and boundary conditions against the complete standard.

Standard basis

VDI 2230

The local standards provide terminology and series values. This tool deliberately identifies its simplified scope and does not claim conformity.

Use

Before detailed design

Use the result as a starting point for selection and plausibility; then verify manufacturer data, load spectra and safety requirements.