COMPUTER IMPLEMENTATION OF THE CONSTRAINT METHOD

A computer program based on the constraint method approach to finite elements is described. The program permits the user to select arbitrarily polynomial orders for the various fields to be approximated. A set of nodal variables enforcing C sub 1 continuity for arbitrary polynomial order is presented, and those aspects of the program algorithm which differ from conventional finite element programs are described, including the numerical determination of a set of independent variables. An example is presented and the results obtained by the constraint method program compared with results from a conventional program. The constraint method approach is seen to be competitive with the conventional approach.

  • Supplemental Notes:
    • The Association of American Railroads, AMCAR Division of ACF Industries, Inc., and Pullman-Standard, a Division of Pullman Inc. Provided for partial funding of this project.
  • Corporate Authors:

    Washington University, St Louis

    St Louis, MO  United States  63130
  • Authors:
    • Rossow, M P
    • Lee, J C
    • Chen, K C
  • Publication Date: 1975-1

Media Info

  • Features: References;
  • Pagination: 33 p.

Subject/Index Terms

Filing Info

  • Accession Number: 00099177
  • Record Type: Publication
  • Source Agency: Department of Transportation
  • Report/Paper Numbers: DOT-OS-30108-3 Tech. Rpt.
  • Contract Numbers: DOT-OS-30108
  • Files: TRIS, USDOT
  • Created Date: Aug 27 1975 12:00AM