Post-Processing Graphics for Brittle Failure Analysis

Finite element techniques are often used to analyze plate structures for brittle failure. If the fracture analysis diagram is taken as the failure criterion, then the special post-processing scheme offered herein becomes an effective analysis aid. This paper suggests contour plots of allowable flaw size as a viable scheme and demonstrates the effectiveness of this approach with two examples.

NOMENCLATURE -

DT -

Dynamic Tear

DWT -

Drop Weight Test

K_IC -

Plane Strain Fracture Toughness

TS -

Tensile Strength, ksi

YS -

Yield Stress, ksi