THE COLLAPSE BEHAVIOR OF THE RECTANGULAR HOLLOW PIPES UNDER COMPRESSION LOAD

The rectangular hollow beam used for many constructions. Therefore, the buckling load prediction is neces-sary to convince those constructions would not be overdesign and prevented the failure. Within uses the finite element method, the result is more accurate for the rectangular hollow model. This study has investi-gated the hollows considering the variable of its profile size, length and thickness. The boundary condition used the free-fixed configuration to convince the critical loads occurred from axial compression. The goal of this study is to obtain the collapse behavior of each hollow size also the buckling load factor constant. The mode-shape consisted by wrinkled and Curved shape, it is depending to the rectangular hollow length