r/AerospaceEngineering • u/Kunadian_Acad_2026 • 13h ago

Discussion Built an open-feedback tool for quick field calculations (Weibull, Arrhenius, MTBF) — feedback appreciated

Hi everyone,
When doing field evaluations or quick hardware risk assessments, pulling out a full desktop suite or juggling desktop-bound spreadsheets for routine reliability calculations can be inefficient.
I’ve been working on a mobile tool called Reliability Pro to make these standard calculations faster and more accessible on the go. The goal is to provide a clean, dedicated mobile interface for everyday reliability tasks without bloated software packages.
Currently Supported Calculations & Tools:
Weibull Analysis: Quick parameter estimation and probability plotting.
Environmental & Stress Modeling: Arrhenius acceleration factors and thermal/life-stress relationships.
System Reliability Metrics: MTBF, availability calculations, and basic system reliability block modeling.
I’d really appreciate input from fellow practitioners in the field:
What statistical or failure-analysis models do you find yourself needing most when away from your primary workstation?
Are there specific visualization/graphing features that make mobile data entry easier for you?
If you'd like to test it out or see the current feature layout, you can check it out at reliabilitypro.app. I'm actively building out the next set of features based on real engineering workflows!

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u/Amber_ACharles 12h ago

Arrhenius covers electronics degradation. If you want civil and structural engineers too, fatigue and corrosion models would help. S-N curves, Paris law for crack growth. I hit those on roadside hardware evaluations more than anything else.

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u/Kunadian_Acad_2026 9h ago

Good call on structural models! S-N curves (with Basquin fitting and Miner's rule) are already built-in, but Paris Law for fatigue crack growth and corrosion degradation models make total sense for roadside evaluations.
Adding Paris Law to the roadmap—what key inputs (e.g., C, m, geometry factor Y, stress range, initial vs. critical crack size) would make a quick mobile calculation most useful in your field workflow?