Structural Performance of a Perforated Hybrid Stainless Steel I-beam

Stainless steel grades are emerging in industries due to their properties like resistance to corrosion, durability, weldability, minimal maintenance requirements, good aesthetic appearance, and ductility. Also, stainless steel can be recycled and is good fire resistant. Hybrid sections with a higher-grade flange and lower-grade web are used in construction to improve the stability of an I-beam. it is important to investigate the structural behavior of a hybrid stainless steel section containing perforations in its web because perforations are essential for the passage of building services like ducts for water, air conditioning, electricity, etc. A numerical investigation on the flexural behavior of perforated Hybrid Stainless Steel (HSS) I-beams using the commercial finite element software, ABAQUS is presented in this paper based on cross-section slenderness i.e., flange and web-critical sections. 3-point bending (3 PB) specimens were chosen for the current numerical investigations. The stainless steel varieties lean duplex stainless steel and duplex stainless steel are taken as the materials for the hybrid steel section.