https://mechcalc.net/blog/en/tags/substitutional-length/ Recent content in Substitutional Length on MechCalc how-to Guide https://mechcalc.net/blog/og-default.png https://mechcalc.net/blog/og-default.png Hugo en Mon, 20 Apr 2026 14:00:00 +0200 https://mechcalc.net/blog/en/posts/vdi2230-04-bolt-elastic-resilience/ Mon, 20 Apr 2026 14:00:00 +0200 https://mechcalc.net/blog/en/posts/vdi2230-04-bolt-elastic-resilience/ VDI 2230 breaks a real bolt into a chain of series cylindrical segments to compute its total elastic resilience δS. This article walks through the substitutional lengths and resilience formulas of the head, shank, free thread, engaged thread and nut region one by one, and explains the difference between DSV and ESV.