Effects of Impact Loading on Steel Welded Profiles

Abstract

Effects of impact loading on structural members like beams are still not a generalized concern in rules, codes and standards. Usually the analysis is based on static or fatigue concepts, and toughness or impact absorbed energy tests on relatively small specimens. So, the main aim of this study was to compare theoretical and experimental beams behaviour when subjected to impact loading. Therefore, eight structural welded steel beams (T- and I-profiles) were clamped (welded) on both ends and tested. To evaluate the performance of each beam, it was measured its deflection and hardness of weld metal and web. Among other facts, it was noticed that weld and base metals have shown similar behaviour as far as ductility is concerned.

Key-words:
Welded beams; Impact loading; Structural steel