Abstract
Axial load loading on the chord can deteriorate impact performance of tubular T-joint subjected to impact loading on the brace. FEA method was used in this paper to investigate the influence of different axial load level under varied impact energy. The analysis result showed that with the increasing of axial load level, the impact force decreased, and under the same axial load level, the impact force increased with the increasing of impact energy. The failure model under different axial load is change from failure around the juncture of chord and brace to at the end of chord.
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