Abstract
demonstrated an ideal linear behavior to failure with reasonably repeatable performance. The short column analysis and experimental tube data given in Table 3 indicate that a suitable analytical procedure exists for predicting the local instability of B/A1 columns. It is important to note that such a capability, coupled with the generally more accurate prediction techniques relative to column buckling and strength, greatly enhances the capability to design and analyze B/A1 tubular structures. The limited data suggest that an empirical knockdown factor of approximately 0.75 be applied to predictions using the analysis procedure to improve correlation between theoretical and test data. More correlation studies are required to demonstrate general application of the procedure over a wider range of specimen diameter to thickness (D/t) ratios.
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