Title: Optimization of Thin Composite Buckling Column with Floating Lateral Constraint

Authors: Alex M. Vanarelli and John W. Gillespie Jr.

DOI: 10.33599/nasampe/s.22.0772

Abstract: This paper examines the effect of floating lateral constraint on the load capacity of thin composite compression columns. These columns, under axial loading, initially buckle outwards and react into floating lateral constraints. As axial displacement is further applied, the columns continue to buckle into higher modes achieving an axial compressive load up to 50 times greater than their initial buckling load. A dynamic FEA model is developed and used to optimize the lateral constraint. Experiments are performed over a range of column and constraint geometry and compared against model predictions with good agreement. The study finds that the load capacity of the compression members approaches an upper bound governed by the membrane compressive strength of the column when optimal constraint conditions are met.

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Conference: SAMPE 2022

Publication Date: 2022/05/23

SKU: TP22-0000000772

Pages: 14

Price: $28.00