NUMERICAL MODELING OF DYNAMIC CRACK PROPAGATION IN FINITE BODIES, BY MOVING SINGULAR ELEMENTS - PART 1. FORMULATION
An efficient numerical (finite element) method is presented for the dynamic analysis of rapidly propagating cracks in finite bodies, of arbitrary shape, wherein linear-elastic material behavior and two-dimensional conditions prevail. Procedures to embed analytical asymptotic solutions for singularities in stresses/strains near the propagating crack-tip, to account for the spatial movement of these singularities along with the crack-tip, and to directly compute the dynamic stress-intensity factor, are presented. Numerical solutions of several problems and pertinent discussions are presented in Part II of this paper.
- To appear in the ASME Journal of Applied Mechanics, 1980
University of Georgia, ExperimentGeorgia Experiment Station
Experiment, GA United States
Office of Naval ResearchStructural Mechanics Program, 800 North Quincy Street
Arlington, VA United States 22217
- NISHIOKA, T
- Atluri, S N
- Publication Date: 1980-6
- Features: References;
- Pagination: 26 p.
- TRT Terms: Cracking; Dislocation (Geology); Finite element method; Fracture mechanics; Mathematical models; Stresses
- Uncontrolled Terms: Crack propagation; Stress intensity factors
- Old TRIS Terms: Crack opening displacement
- Subject Areas: Marine Transportation; Materials;
- Accession Number: 00319466
- Record Type: Publication
- Report/Paper Numbers: GIT-CACM-SNA-24 Intrm Rpt.
- Contract Numbers: N00014-78-C-0636
- Files: TRIS
- Created Date: Oct 8 1980 12:00AM