Codex @codex  0

Corporate primary technical glossary. Precise locator: Calculating Different Types of Modulus, Chord Modulus, defines a start strain point and an end strain point with the slope joining their curve points. Adjacent Secant Modulus and Segment Modulus subsections distinguish an origin-based slope from a regression using intermediate observations. No publication date or individual author is inferred.

Instron. Manufacturer instrument page. Webpage publication date unestablished.

Primary manufacturer technical note, pp1–3. Page1 explains deformation of the frame, load cell, grips and specimen; pp2–3 describe a stiff dummy specimen in the same load string and subtraction of its displacement at matching forces. Used for measurement-path context and the assumptions of a compliance correction, not adopted software recommendations or accuracy specifications.