Open AccessANALYSIS OF SPOT-WELDING PITCH ON TOP HAT STRUCTURE AGAINST CRASHWORTHINESS CRITERIA
Author(s) -
Harry Purnama,
Jos Istiyanto
Publication year - 2023
Publication title -
majalah ilmiah pengkajian industri/majalah ilmiah pengkajian industri
Language(s) - English
Resource type - Journals
eISSN - 2541-1233
pISSN - 1410-3680
DOI - 10.29122/mipi.v15i1.4628
Subject(s) - spot welding , crashworthiness , flange , welding , automotive engineering , automotive industry , finite element method , structural engineering , engineering , mechanical engineering , aerospace engineering
The application of spot-welding in the automotive industry, especially the electric-based vehicle frame structure, has been optimized to meet passenger and battery compartment safety factors. The present numerical study of the electric-based vehicle frame structure with the top hat cross-sectional model validated the experimental results of reference, which then modified the spot-welding pitch to determine the crashworthiness effect and criteria. The numerical simulation results show that reducing spot-welding pitch in vertical direction can increase energy absorption (EA) by 1.70% - 9.91%, while bringing spot-welding pitch closer to the flange's outer edge can reduce its maximum force (Fmax) by 8.11% - 21.67%.Keywords: Spot-welding; Top Hat Structure; Crashworthiness; Numerical Simulation; Electric Vehicle.