ANALYSIS OF SPOT-WELDING PITCH ON TOP HAT STRUCTURE AGAINST CRASHWORTHINESS CRITERIA | Zendy

Harry Purnama | Zendy; Jos Istiyanto | Zendy

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ANALYSIS OF SPOT-WELDING PITCH ON TOP HAT STRUCTURE AGAINST CRASHWORTHINESS CRITERIA

Author(s) -

Harry Purnama,

Jos Istiyanto

Publication year - 2021

Publication title -

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.

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