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.

• Supplemental Notes:
  • Published in Nonlinear and Dynamic Fracture Mechanics (ASME), Volume 35, pp 37-66, 1979.
• Corporate Authors:

  University of Georgia, Experiment

  Georgia Experiment Station
  Experiment, GA  United States 
• Authors:
  • Alturi, S N
  • NISHIOKA, T
• Publication Date: 1980-6

Media Info

• Features: References;
• Pagination: 40 p.

Subject/Index Terms

• 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;

Filing Info

• 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