Jr. Yates et al., MIXED-MODE STRESS INTENSITY CALIBRATIONS FOR AN ANGLED CRACK BEND SPECIMEN, Journal of testing and evaluation, 23(5), 1995, pp. 341-346
Test specimens with angled or inclined cracks are frequently used to i
nvestigate mixed mode fatigue and fracture properties. A full three-di
mensional (3-D) linear elastic finite element stress analysis has been
performed for a beam with an angled single edge crack subjected to th
ree-point bend loading. Crack angles of 45 degrees, 60 degrees, 75 deg
rees, and 90 degrees to the longitudinal axis of the beam have been co
nsidered. The resulting geometric correction terms to the linear elast
ic fracture mechanics (LEFM) mode I, II, and III stress intensity fact
ors are presented.