A. Beakou et al., SOME GEOMETRIC PROBLEMS RELATED TO FRACTURE-CONTROL IN COMPLEX STRUCTURES, Communications in numerical methods in engineering, 10(4), 1994, pp. 279-290
In the design of members with flaws, it is necessary to keep the stres
s intensity factor K of any sharp crack below the fracture toughness K
(cr) of the materials. Stress-intensity factor equations for the more
common basic specimen geometries and various loading conditions are av
ailable in the literature. The application of these equations to compl
ex structures involves geometric problems such as the identification o
f the outline of each member and the sizing of the equivalent specimen
for each flaw. The paper gives a response to such difficulties.