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.

  • Supplemental Notes:
    • To appear in the ASME Journal of Applied Mechanics, 1980
  • Corporate Authors:

    University of Georgia, Experiment

    Georgia Experiment Station
    Experiment, GA  USA 

    Office of Naval Research

    Structural Mechanics Program, 800 North Quincy Street
    Arlington, VA  USA  22217
  • Authors:
    • NISHIOKA, T
    • Atluri, S N
  • Publication Date: 1980-6

Media Info

  • Features: References;
  • Pagination: 26 p.

Subject/Index Terms

Filing Info

  • 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