Accession Number : ADA108975


Title :   Program for Nonlinear Structural Analysis


Descriptive Note : Final rept. Jan 79-Jun 81


Corporate Author : BOEING AEROSPACE CO SEATTLE WA


Personal Author(s) : Jones, Robert E.


Full Text : http://www.dtic.mil/get-tr-doc/pdf?AD=ADA108975


Report Date : SEP 1981


Pagination or Media Count : 77


Abstract : The development and evaluation of new theoretical and numerical approaches for strongly nonlinear finite element analysis are reported. The element technology uses interior nodes to create higher order in-plane displacement forms needed for nonlinear strain calculation. Several solution procedure types are discussed, based on an updated total Lagrangian formulation. Progress with this approach and current capability levels are discussed. (Author)


Descriptors :   *COMPUTERIZED SIMULATION , *FINITE ELEMENT ANALYSIS , *STRUCTURAL ANALYSIS , *NONLINEAR ANALYSIS , COMPUTER PROGRAM DOCUMENTATION , MATHEMATICAL MODELS , STRESS ANALYSIS , BEAMS(STRUCTURAL) , DEFORMATION , STIFFNESS , DISPLACEMENT , STRAIN(MECHANICS) , BENDING , PROBLEM SOLVING , NONLINEAR SYSTEMS , ERRORS , PERTURBATIONS , LAGRANGIAN FUNCTIONS , EULER ANGLES.


Subject Categories : NUMERICAL MATHEMATICS
      COMPUTER PROGRAMMING AND SOFTWARE
      STRUCTURAL ENGINEERING AND BUILDING TECHNOLOGY


Distribution Statement : APPROVED FOR PUBLIC RELEASE