Verify that the pressure under the bolt head or nut does not exceed the compressive yield strength of the clamped material to prevent embedding.
VDI 2230 Part 1 outlines a structured, 13-step calculation process to verify a bolted joint design. Below is a simplified summary of these steps: Step 1: Determine the Dimensions and Geometry vdi 2230 part 1 pdf
VDI 2230 Part 1 is the global gold standard for the systematic calculation of high-strength bolted joints. Originally developed by the Association of German Engineers (Verein Deutscher Ingenieure), it provides a rigorous 13-step mathematical framework to ensure that bolted connections can withstand operational loads without failing due to fatigue, loosening, or shearing. Core Principles of VDI 2230 Verify that the pressure under the bolt head
Φ=δPδB+δPcap phi equals the fraction with numerator delta sub cap P and denominator delta sub cap B plus delta sub cap P end-fraction Originally developed by the Association of German Engineers
Practical application tips
Data is generally valid for room temperature; extreme conditions like high/low temperatures or severe corrosion require additional considerations. Deutsche Nationalbibliothek The Calculation Process (13-Step Approach) Calculation of lockbolt joints in mechanical engineering
): Determining how much of the external load is absorbed by the bolt versus the clamped parts. Tightening Torque ( MAcap M sub cap A