| Title |
A Study on Physically Nonlinear Analysis of Space Trusses by Finite Element Method |
| Abstract |
The analysis of physically nonlinear space trusses was studied by the developed computer program, NONST.The analysis method of physically nonlinear structures is presented using an iterationn procedure based upon the change in the load vector of a given problem. The convergence speed of the method to the final solution is increased by introducing a relaxation factor dependent on the type of the nolinear member which has reached the allowable buckling force.A numerical example illustrates the accuracy and the efficiency of the developed computer program. Its result is compared with those of the general programs, GTSTRUDL and MSC/NASTRAN. |