Buckling and Post Buckling of Thin-walled Composite Columns with Intermediate-stiffened Open Cross-section Under Axial Compression

다국어 초록 (Multilingual Abstract)

The thin-walled composite columns with an open cross-section reinforced by intermediate stiffener under axial compression
have been considered. The finite element method is employed to study the buckling behaviour of the thin-walled composite
column. Eigenvalue analyses are carried out first to predict the buckling load and buckling mode shapes of the column, and
then the geometric nonlinear analyses are performed to investigate the nonlinear buckling properties and post-buckling
behaviour of the thin-walled structures. The type of angle ply symmetric laminate is used. The investigation is performed over
several values of ply arrangement angle and various values of stiffener parameter. The numerical results show a significant
effect of the intermediate stiffeners and composite ply angle on loading capacity and buckling behaviour of the thin-walled
composite column. The research provides insight into the thin-walled structure and composite laminate, which is employed to
enhance the loading capacity of thin-walled composite structures.

다국어 초록 (Multilingual Abstract)

The thin-walled composite columns with an open cross-section reinforced by intermediate stiffener under axial compression
have been considered. The finite element method is employed to study the buckling behaviour of the thin-walled composite
column. Eigenvalue analyses are carried out first to predict the buckling load and buckling mode shapes of the column, and
then the geometric nonlinear analyses are performed to investigate the nonlinear buckling properties and post-buckling
behaviour of the thin-walled structures. The type of angle ply symmetric laminate is used. The investigation is performed over
several values of ply arrangement angle and various values of stiffener parameter. The numerical results show a significant
effect of the intermediate stiffeners and composite ply angle on loading capacity and buckling behaviour of the thin-walled
composite column. The research provides insight into the thin-walled structure and composite laminate, which is employed to
enhance the loading capacity of thin-walled composite structures.

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