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eng.bottle-burst-pressure Calculator
Calculates PET bottle burst pressure from wall thickness, diameter, and material yield strength using thin-wall pressure vessel theory. PET bottle burst pressure for carbonated beverages is typically 150–200 psi — tested to 6× the fill pressure (60–80 psi) for safety.
Inputs
T Mm
Perpendicular measurement through the material. For insulation: thicker is better. For beams: directly affects bending resistance.
D Mm
Distance across a circle through its centre. Always confirm units match the rest of the calculation.
Sigma Ult Mpa
Maximum stress before fracture. Structural steel: 400–700 MPa. Aluminium alloys: 200–500 MPa.
Results
burst pressure P_burst (bar)
Reference formula or conversion factor shown for context.
burst pressure (MPa)
Reference formula or conversion factor shown for context.
design pressure (FOS 4, bar)
Sample size or count used in the calculation.
P = 2σ_ult·t/D
Reference formula or conversion factor shown for context.
typical carbonated beverage
The value at the specified point or condition.
D/t ratio (thin-wall criterion)
The proportional relationship between two quantities.