Hydraulic stress needed to burst a vessel of offered thickness. Widely used in testing filament-wound composite frameworks. Force needed to break a fabric by growing a flexible diaphram or pushing a smooth spherical area against a securely held circular section of fabric.
Pressure at which a film or sheet (of paper or plastic, for example) will burst. Used as a measure of resistance to rupture, burst strength depends largely on the tensile strength and extensibility of the material. Determined by procedures such as Mullen burst test, it is expressed commonly in pounds per square inch (psi). Burst strength of packaging material used in shipment of merchandise is usually printed on the package. Also called bursting strength. See also stacking strength.