RC Strain Diagram Calculator

Fill in any two of εc, εd, or Lcr; the third is solved. Sliders preserve Lcr when it is one of your inputs.

0.003000
0.002100
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AutoLISP — drag and drop the downloaded file onto the AutoCAD drawing window and it draws immediately. APPLOAD also runs it automatically; no command typing is needed.
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Strain-diagram relationship based on: Djamaluddin et al., ETASR vol. 16, no. 1, 2026 — doi.org/10.48084/etasr.15826