Simulation and sensitivity analysis of controlling parameters in resistance spot welding
This study was performed to investigate the fundamental parameters controlling the nugget growth. The parameters were categorized into four groups, i.e. material parameters, electrical parameters, thermal parameters and geometrical parameters. In order to quantify the sensitivity of nugget growth to...
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| Format: | Article |
| Language: | English |
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The Korean Institute of Metals and Materials
2016
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| Online Access: | http://hdl.handle.net/1721.1/105532 https://orcid.org/0000-0002-4978-7583 |
| _version_ | 1826203453737664512 |
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| author | Kim, Euiwhan Eagar, Thomas W |
| author2 | Massachusetts Institute of Technology. Department of Materials Science and Engineering |
| author_facet | Massachusetts Institute of Technology. Department of Materials Science and Engineering Kim, Euiwhan Eagar, Thomas W |
| author_sort | Kim, Euiwhan |
| collection | MIT |
| description | This study was performed to investigate the fundamental parameters controlling the nugget growth. The parameters were categorized into four groups, i.e. material parameters, electrical parameters, thermal parameters and geometrical parameters. In order to quantify the sensitivity of nugget growth to changes in these parameters, a numerical model which incorporates the electrical, mechanical and thermal contact was developed. As a result, a sensitivity index table was constructed and analyzed to ascertain the relative importance of these characteristic parameters. It was found that the most important factor in determining the variability of nugget growth behavior is the ratio of contact radius to electrode radius and the ratio of electrode radius to the square of specimen thickness. In general for a variation of 10%, the geometrical parameters are most important, followed by the material parameters. The electrical parameters and the thermal parameters are the least important. The importance of contact at the faying interface is greater for the contact area than for the contact resistance. |
| first_indexed | 2024-09-23T12:37:14Z |
| format | Article |
| id | mit-1721.1/105532 |
| institution | Massachusetts Institute of Technology |
| language | English |
| last_indexed | 2024-09-23T12:37:14Z |
| publishDate | 2016 |
| publisher | The Korean Institute of Metals and Materials |
| record_format | dspace |
| spelling | mit-1721.1/1055322022-10-01T10:07:10Z Simulation and sensitivity analysis of controlling parameters in resistance spot welding Kim, Euiwhan Eagar, Thomas W Massachusetts Institute of Technology. Department of Materials Science and Engineering Eagar, Thomas W This study was performed to investigate the fundamental parameters controlling the nugget growth. The parameters were categorized into four groups, i.e. material parameters, electrical parameters, thermal parameters and geometrical parameters. In order to quantify the sensitivity of nugget growth to changes in these parameters, a numerical model which incorporates the electrical, mechanical and thermal contact was developed. As a result, a sensitivity index table was constructed and analyzed to ascertain the relative importance of these characteristic parameters. It was found that the most important factor in determining the variability of nugget growth behavior is the ratio of contact radius to electrode radius and the ratio of electrode radius to the square of specimen thickness. In general for a variation of 10%, the geometrical parameters are most important, followed by the material parameters. The electrical parameters and the thermal parameters are the least important. The importance of contact at the faying interface is greater for the contact area than for the contact resistance. 2016-12-02T18:40:26Z 2016-12-02T18:40:26Z 2015-03 2014-06 2016-08-18T15:47:20Z Article http://purl.org/eprint/type/JournalArticle 1598-9623 2005-4149 http://hdl.handle.net/1721.1/105532 Kim, Euiwhan, and Thomas W. Eagar. “Simulation and Sensitivity Analysis of Controlling Parameters in Resistance Spot Welding.” Metals and Materials International 21, no. 2 (March 2015): 356–364. https://orcid.org/0000-0002-4978-7583 en http://dx.doi.org/10.1007/s12540-015-4312-2 Metals and Materials International Creative Commons Attribution-Noncommercial-Share Alike http://creativecommons.org/licenses/by-nc-sa/4.0/ The Korean Institute of Metals and Materials and Springer Science+Business Media Dordrecht application/pdf The Korean Institute of Metals and Materials The Korean Institute of Metals and Materials |
| spellingShingle | Kim, Euiwhan Eagar, Thomas W Simulation and sensitivity analysis of controlling parameters in resistance spot welding |
| title | Simulation and sensitivity analysis of controlling parameters in resistance spot welding |
| title_full | Simulation and sensitivity analysis of controlling parameters in resistance spot welding |
| title_fullStr | Simulation and sensitivity analysis of controlling parameters in resistance spot welding |
| title_full_unstemmed | Simulation and sensitivity analysis of controlling parameters in resistance spot welding |
| title_short | Simulation and sensitivity analysis of controlling parameters in resistance spot welding |
| title_sort | simulation and sensitivity analysis of controlling parameters in resistance spot welding |
| url | http://hdl.handle.net/1721.1/105532 https://orcid.org/0000-0002-4978-7583 |
| work_keys_str_mv | AT kimeuiwhan simulationandsensitivityanalysisofcontrollingparametersinresistancespotwelding AT eagarthomasw simulationandsensitivityanalysisofcontrollingparametersinresistancespotwelding |