Advanced Bellows Engineering

An interactive tool project exploring the mechanical principles
of edge-welded bellows and automating their specification design

Core Physics

S-N Curve Graphic

01. Fatigue Life Prediction

The heart of bellows design is fatigue-life prediction. Using S-N (Stress-Life) and Buhler’s curves, we calculate the expected cycle life as a function of the stroke ratio.

Spring Rate Logic

02. Hooke's Law & Stiffness

A bellows behaves as a precision spring. We analyze how the ratio of plate thickness (t) to span (w) affects the spring rate, optimizing the load on the overall system.

Material Science

03. High Alloy Selection

A study of the tensile strength and Young's modulus of specialty alloys — such as AM350, Inconel 625/718, and Titanium — that withstand extreme environments of high heat and corrosion.

Interactive Design Configurator

Use the tool below to design a virtual bellows specification.
Selecting an input field highlights the corresponding part in the graphic on the right.

Step 1. Operating Environment

Step 2. Dimensions

Step 3. Connections & Review

Live Preview
Inner Dia (ID) Outer Dia (OD) Length