Collapse of Thin-Walled Curved Beam with Closed-Hat Section - Part 1: Study on Collapse Characteristics

This paper describes the collapse characteristics of thin-walled curved beams with closed-hat section under axial compression load.

Static and dynamic collapsing tests have been carried out on beams different in section size, curved angle, thickness and yield point.

We clarify the influences of the initial bending curvature of beam axis, size of section and gauge of metal sheets on the gloval deformation mode, local buckling mode and load-deformation curve from the test results.

These results of collapsing tests provide the necessary feedback for the structural components design and aid in the verification of analytical predictive techniques.