Accession Number:

AD0689877

Title:

FINITE ELEMENT ANALYSIS OF COMBINED PROBLEMS OF NON-LINEAR MATERIAL AND GEOMETRIC BEHAVIOR.

Descriptive Note:

Technical rept.,

Corporate Author:

BROWN UNIV PROVIDENCE R I DIV OF ENGINEERING

Personal Author(s):

Report Date:

1969-03-01

Pagination or Media Count:

32.0

Abstract:

A survey is first made of finite element analysis with nonlinear elastic-plastic andor geometric behavior. Incremental stiffness matrices are then developed for the small strain large displacement analysis of combined nonlinear problems. The element stiffness matrices are obtained from the principle of virtual work. The theory is demonstrated with reference to a three-dimensional constant stress tetrahedron element. A general purpose finite element program for combined nonlinear analysis is then described. Case studies, using the program, examine the behavior of axisymmetric shells, flat plates and structures in plane stress. Author

Subject Categories:

  • Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE