Evaluation of Finite Element Calculations in a Cracked Cylinder Under Internal Pressure by Speckle Photography

Published in J. Appl. Mech Vol. 50 (4a), pp. 896-897, 1983
doi:10.1115/1.3167166

Abstract

The usefulness of using the speckle photography technique in fracture mechanics to check numerical calculations is demonstrated for an internally pressurized cylinder with a surface flaw. A pointwise technique was utilized to measure the opening displacements along the crack line and the Mode I stress-intensity factor was determined by extrapolating these results to the crack tip. Finite element calculations were performed to be compared with experimental data and good agreement was obtained