Behavior of HPS Cruciform Columns

With the development of high performance steel for use in the U.S. Navy’s Fleet of the Future Program, questions have risen concerning the properties of the specific high performance steels termed HSLA (High Strength Low Alloy). Cruciform stub column members were fabricated to examine the inelastic local buckling behavior of HSLA80 and HSLA100 steels and compare those results to similarly fabricated ASTM A36 steel cruciform specimens. The goal of the research is to determine whether the existing limits on local slenderness can be extended to include steels up to and including a nominal yield stress of 100 ksi.

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