Runs a linear buckling analysis of a Solid and measures the critical load factor: the multiple of the applied loads at which it first buckles (below 1, it buckles under the loads as given). Exposes #critical_factor, #max (the same number) and #mode_field.
The Solid to analyze.
Reference loads and supports, in the Solid's own coordinates. The critical factor scales these loads.
Target number of finite elements (1,000–2,000,000); the element size is searched to reach it. Used while By cell size is off.
Off (default): Resolution sets the element count. On: Cell size sets the element size directly and Resolution is ignored.
Element size at the surface in mm, used while By cell size is on.
Radius (mm) of the patch of nodes held around each support point. It matters here: a support on a single point concentrates stress and produces a false, nearly-zero buckling mode, so spread supports over a patch or a region.
Element order. linear (default) wants about three cells across a wall; quadratic captures bending with far fewer cells, which suits the buckling of thin tubes, at more time and memory per element.
Values the block gives besides its output. The editor lists them under Properties, and an input can read one by reference.
The lowest linear buckling load factor λ_crit: the structure first buckles at λ_crit times the applied load, so a value below 1 means it buckles before reaching that load. Require λ_crit ≥ λ_allow.
The same number as CriticalFactor: the reading every metric gives as its Max.
Shape of the first buckling mode: the size of the mode vector |φ| across the Solid, scaled to 0–1 because its absolute size means nothing, so 1 marks the largest deflection, where it buckles. Drapeable; 0 where there is no compressive mode.