The experimental quasi-static and impact tests of the axial crushing of columns were performed to validate finite element (FE) models which were used for the simulations to evaluate the influence of spot-welding.
These thin-plate sheets are interconnected by spot-welding. When repairing sometimes it is necessary to separate individual panels of the deformation zone in order to recover their primary form (Fig.
At least one missed spot-welding doubles the spacing between adjacent connections in our research profile.
The specimen with two ruptures of spot-welding was deformed by 11 cm, whereas the specimen with no spot-welding ruptures was deformed only by 9.5 cm (Fig.
Based on the findings of above-described experimental tests and results of calculations, we have examined, using FE model, the influence of partial or total failure of a spot-welding on the deformation of the specimen and amount of the energy absorbed.
Variations of manual and original spot-welding by FEA simulation are shown in Table 4.