Solution of stress intensity factor by weight function for small surface cracks in plates
Abstract
The 3D weight function method is used to determine SIFs for small surface cracks in plates subjected to remote tension and bending. The geometry parameters considered over the range of small surface crack problems are those commonly encountered in fatigue and fracture studies and applications. Very good agreement is obtained with solutions found in the literature. The limiting behaviors of SIFs as the crack aspect ratio tends to zero are also investigated. The solutions presented here should be useful in damage tolerance and durability analysis of aircraft structures and in the study of small fatigue cracks.
- Publication:
-
Acta Aeronautica et Astronautica Sinica
- Pub Date:
- February 1991
- Bibcode:
- 1991AcAAS..12...44Z
- Keywords:
-
- Fracture Mechanics;
- Plate Theory;
- Short Cracks;
- Stress Intensity Factors;
- Surface Cracks;
- Weighting Functions;
- Aircraft Structures;
- Bending;
- Damage Assessment;
- Durability;
- Stress Analysis;
- Tensile Stress;
- Structural Mechanics