How the model works¶
Background
Every module in HRC Designer rests on one idea: describe each material by a few straight lines, impose the strain at the tension face of the section, and solve the section in closed form. This section gives the minimum needed to use the software with confidence. The derivations are in the papers.
1
Material models and notation
The tension, compression and reinforcement laws and the normalized parameters behind every input box.
2
Closed-form moment-curvature
From an imposed strain to the neutral axis, the moment and the curvature, stage by stage.
3
From moment-curvature to load-deflection
Curvature along the beam, the plastic length, and what localization does to the curve.
4
Auto-Fit, the inverse analysis
The least-squares problem the software solves and how to judge a fit.
5
Papers
The publications that define and validate each module.
