Quasi-static axial compression of thin-walled circular aluminium tubes

摘要: Abstract This paper presents further experimental investigations into axial compression of thin-walled circular tubes, a classical problem studied for several decades. A total 70 quasi-static tests were conducted on 6060 aluminium tubes in the T5, as-received condition. The range D/t considered was expanded over previous studies to D/t=10–450. Collapse modes observed L/D⩽10 and mode classification chart developed. average crush force, FAV, non-dimensionalised an empirical formula established as FAV/MP=72.3(D/t)0.32. It found that test results both axi-symmetric non-symmetric lie single curve. Comprehensive comparisons have been made between existing theories our FAV. has revealed some shortcomings, suggesting theoretical work may be required. ratio FMAX/FAV increased substantially with increase ratio. effect filling different density polyurethane foam also briefly examined.