Interpretations of the Drop Weight Test in Terms of Strain Tolerance (Gross Strain) and Fracture Mechanics.

Test of 6-inch-thick pressure vessels. Series 1: intermediate test vessels V-1 and V-2

“…From ref. 20, the value of €",* for A533, grade B, class 1 steel is 0.37%, and this value was used for vessel V-2. From the preceding linear elastic fracture mechanics calculation, the value of e* is 0.207%.…”

“…2. 20. The dashed lines indicate extrapolations to the stresses given by Lame's equation for tangential stress and by "force over area" for the axial stress.…”