Research on bursting pressure formula of mild steel pressure vessel

Of several formulas for calculating bursting pressure of mild steel vessel, the Faupel formula is the most famous one. In fact, Faupel formula is conservative in calculating mild steel pressure. Based on hundreds of bursting experiments on mild steel pressure vessels such as Q235(Gr.D), 20R(1020) and, after statistically analyzing data on bursting pressure, it was found that the Faupel formula had some errors in calculation. The authors derived a more approximate modified formula from the data, which proved more general after examining the data on other mild steel pressure vessels with different diameters and shell thickness.