Stress intensity factors and weight functions for a corner crack in a finite thickness plate

An efficient stress intensity factor solution scheme for corner cracks at holes under bivariant stressing

“…WF is derived as Green's function or influence function on the crack surface and the SIF can then be obtained by integrating the product of the load with the WF over the crack depth. When the analytical form is not available, the approximate WF approach developed by Glinka 14,15 or the multiple reference state WF approach by Brennan 16 can be used.…”

A technique for measuring stresses in small spatial regions using cube-corner indentation: Application to tempered glass plates

“…21 Q and F 0 are factors dependent on the eccentricity of the crack, and on the eccentricity and plate thickness, respectively. Assuming that the crack is quarter-penny, i.e., eccentricity = 0, and that the crack depth is small compared to plate thickness, the expression for K QP can be expressed in a form similar to Eq.…”

Behaviour of small fatigue cracks emanating from notches in Ti-6Al-4V

“…The smallest crack size detected was about 60 |xm. In order to report crack growth rates as a function of a fracture mechanics parameter, the stress intensity factor range was calculated using the weight function derived by Glinka [3] for a quarter-elliptical comer crack in a finite thickness plate under bending. In order to take advantage of the symmetry, only a quarter of the specimen was modelled.…”