Improvement of dynamic buckling behavior of intermediate aluminized stainless steel columns

Abstract EN

This paper experimentally investigated the dynamic buckling behavior of AISI 303 stainless steel aluminized and as received intermediate columns.

Twenty seven specimens without aluminizing (type 1) and 75 specimens with hot –dip aluminizing at different aluminizing conditions of dipping temperature and dipping time (type 2), dynamic compression loading (compression and torsion), dynamic bending dynamic combined loading (compression, bending, and torsion) by using a rotating buckling test machine.

The experimental results werecompared with tangent modulus theory, reduced modulus theory, and Perry Robertson interaction formula.

Reduced modulus was experimental results obtained showed an advantageous influence of hot buckling behavior of AISI 303 stainless steel intermediate columns.

critical stress were19.4 % for intermediate columns type (2) compared with columns type (1) under dynamic compression loading, 8.7 % for intermediate columns type (2) compar loading, and 16.5 % for intermediate columns type (2) compared with columns type (1) under dynamic combined loading.