THE POSITION OF A WELD AND ITS INFLUENCE ON MECHANICAL STRESS CONCENTRATION
DOI:
https://doi.org/10.46585/pc.2021.2.1738Keywords:
weldment, Finite Element Method (FEM), mechanical stress concentration, optimization, weld joint factorAbstract
The paper deals with the appropriate positioning of the welds of the frame and their influence on the strength of the structure. In the frame design, it is considered to minimize the weight while maintaining its strength and load capacity. For this purpose, a 3D model of the frame corresponding to the actual frame was created and this model was subjected to Finite Element Analysis (FEA). Based on this analysis, areas with stress concentrations have been identified in which it is desirable to change the direction of the welds in order to minimize the occurrence in areas of high mechanical stress. Due to these modifications, the weight of the frame could be reduced by using profiles with lower wall thickness while maintaining the required strength. The design of the appropriate direction of welds and inspection tests could increase the weld joint factor in the given area and thus the maximum allowable stress.
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Copyright (c) 2021 Petr Jilek, Jan Berg
This work is licensed under a Creative Commons Attribution 4.0 International License.
Accepted 2021-11-25
Published 2021-12-30
