| Title |
Nonlinear Analysis of Trusses Using Arc-Length Method |
| Abstract |
A methodology is developed to perform nonlinear postbukling analysis of truss systems. Geometric nonlinearity and material nonlinearity are considered in the investigation of post critical ultimate load conditions of trusses. An incremental/iterative solution strategy utilizing modified Newton-Paphson iterations with constant arc-length constraint is presented. Also this paper describes a method for introducing line-search and a simple single-parameter acceleration into arc-length solution procedures. The illustrative numerical examples are given in the trace of load-deflection curves of space trusses with different geometries. |