Tablet Compaction 2D: Powder Densification & the Heckel Equation

Every pharmaceutical tablet begins as a loose bed of powder granules poured into a cylindrical die, then squeezed between two punches until it becomes a solid, dense compact. This 2D cross-section simulator drives that die and punch assembly with the real Heckel equation — the pharmaceutical-technology model relating relative density to applied pressure — so the powder bed visibly densifies, the bed height drops, and porosity falls as the compression stroke runs. Adjust the peak pressure, the material's mean yield pressure (how plastic vs. brittle it is), and its initial rearrangement density to see how a soft excipient compacts to full density in a light stroke while a hard, brittle one needs far more force to reach the same tablet strength. Drag to pan the view and scroll to zoom in on the granule packing.