For K-12 Students · Fatigue (S-N)
Fatigue (S-N) for a glass pane
Built for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework. Simulate a glass pane live below — adjust the inputs and watch it respond, right in your browser.
Fatigue (S-N Curve)Live
failure under cyclic load
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Repeated loading well below the ultimate strength can still break a part — metal fatigue. The S-N curve plots stress amplitude against cycles to failure. Steels have an endurance limit: below it they last essentially forever, but aluminum has none and eventually fails at any stress. Cause of many catastrophic aircraft and bridge failures.
Data Inspector
Endurance limit250 MPa
Cycles to failure1.17e+5
Verdictfinite life
Governing equation
Reading this result: At 300 MPa the part fails after about 1.2e+5 cycles. Drop below the 250 MPa endurance limit to reach infinite life.
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Frequently asked questions
- Is this good for k-12 students?
- Yes — this version of "Fatigue (S-N) for a glass pane" is framed for k-12 students learning it in middle or high school. Watch the idea come alive with plain-language steps and everyday examples — perfect for projects and homework.
- Do I need to install anything?
- No. It runs in any modern browser, free, with no account required.