ABSTRACT
The quasi-static and impact axial compression behaviour of thin-walled hollow and epoxy filled spot-welded mild steel tubes of simple Double-V cross-section was investigated experimentally. The influence of increasing spot-weld pitch on load-displacement behaviour and the observed mechanisms of collapse are discussed. Mass-specific energy absorption capacity is compared for hollow and filled tubes tested dynamically. For hollow tubes increasing spot-weld pitch is found to promote longer mechanisms of collapse which dissipate less energy. For epoxy filled tubes the response is found to be essentially independent of spot-weld pitch for the range of pitch tested.
