NUMERICAL MODELING DYNAMIC AND NONLINEAR CRACK PROPAGATION IN FINITE BODIES, BY MOVING SINGULAR-ELEMENTS NAVIGATION IN THE NORTHERN PORT OF THE GULF OF BOTHNIA
In this paper, two classes of problems are considered; (i) dynamic analysis of rapidly propagating cracks in finite bodies, of arbitrary shape, wherein linear-elastic material behviour and two-dimensional conditions prevail; (ii) analysis of fatigue growth of cracks near cold-worked fastener holes in two-dimensional bodies involving elastic-plastic materials. In both instances, simple numerical methodologies to imbed analytical asymptotic solutions for singularities in strains/stresses near the propagating crack-tip, and to account for the spatial movement of these singularities along with the crack-tip, are presented. Numerical Solutions of several problems, in both the cases, are presented. Numeical Solutions of seveal problems, in both the cases, are presented; and results for appropriate fracture-characterizing parameters for these problems are presented and discussed.
- Published in Nonlinear and Dynamic Fracture Mechanics (ASME), Volume 35, pp 37-66, 1979.
University of Georgia, ExperimentGeorgia Experiment Station
Experiment, GA United States
- Alturi, S N
- NISHIOKA, T
- Publication Date: 1980-6
- Features: References;
- Pagination: 40 p.
- TRT Terms: Cracking; Deformation curve; Dislocation (Geology); Elastoplasticity; Finite element method; Fracture mechanics; Mathematical models
- Uncontrolled Terms: Crack propagation
- Old TRIS Terms: Crack opening displacement
- Subject Areas: Marine Transportation; Materials;
- Accession Number: 00319469
- Record Type: Publication
- Report/Paper Numbers: GIT-CACM-SNA-Z1
- Contract Numbers: N00014-78-C-0636
- Files: TRIS
- Created Date: Oct 8 1980 12:00AM