Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
770254 | Engineering Fracture Mechanics | 2015 | 18 Pages |
Abstract
In this paper, by means of a specific coordinate transformation, the singularity of the weight function is overcome. A strong advantage is obtained for a penny-shaped crack. In this case, a new exact formulation is given and a new alternative non-singular integral is proposed in terms of trigonometric functions. The new approach gives a remarkable streamlining of the Galin’s function with the advantage of reducing the complexity of the double integral. Furthermore, we give a second order analytical approximation of Oore–Burns integral for elliptical cracks with respect to deviation from the disk. This approach drastically simplifies the computational procedure without loss of accuracy.
Related Topics
Physical Sciences and Engineering
Engineering
Mechanical Engineering
Authors
Paolo Livieri, Fausto Segala,