Residual Stress Measurement in Spot Welds and the Effect of Fatigue Loading on Redistribution of Stresses Using High Sensitivity Moiré InterferometrySource: Journal of Engineering Materials and Technology:;2001:;volume( 123 ):;issue: 001::page 132Author:Sanjeev K. Khanna
,
Canlong He
,
Research Assistant
,
Hari N. Agrawal
,
Senior Technical Specialist
DOI: 10.1115/1.1286218Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Residual stress distribution has been determined in spot welds, which are generally used to join mild steel sheets. Various spot weld configurations were investigated using the full-field, experimental, optical technique of high sensitivity moiré interferometry. These stresses were found to be in the range 250–300 MPa (tensile) in the center and decreased to 40–100 MPa (tensile) at the edge of the weld nugget. Low cycle fatigue loading of the spot weld caused the residual stress to drop in the weld center by about 30 percent and increase at the edges by as much as 100 percent.
keyword(s): Fatigue , Stress , Welded joints AND Interferometry ,
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| contributor author | Sanjeev K. Khanna | |
| contributor author | Canlong He | |
| contributor author | Research Assistant | |
| contributor author | Hari N. Agrawal | |
| contributor author | Senior Technical Specialist | |
| date accessioned | 2017-05-09T00:05:05Z | |
| date available | 2017-05-09T00:05:05Z | |
| date copyright | January, 2001 | |
| date issued | 2001 | |
| identifier issn | 0094-4289 | |
| identifier other | JEMTA8-27017#132_1.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/125348 | |
| description abstract | Residual stress distribution has been determined in spot welds, which are generally used to join mild steel sheets. Various spot weld configurations were investigated using the full-field, experimental, optical technique of high sensitivity moiré interferometry. These stresses were found to be in the range 250–300 MPa (tensile) in the center and decreased to 40–100 MPa (tensile) at the edge of the weld nugget. Low cycle fatigue loading of the spot weld caused the residual stress to drop in the weld center by about 30 percent and increase at the edges by as much as 100 percent. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Residual Stress Measurement in Spot Welds and the Effect of Fatigue Loading on Redistribution of Stresses Using High Sensitivity Moiré Interferometry | |
| type | Journal Paper | |
| journal volume | 123 | |
| journal issue | 1 | |
| journal title | Journal of Engineering Materials and Technology | |
| identifier doi | 10.1115/1.1286218 | |
| journal fristpage | 132 | |
| journal lastpage | 138 | |
| identifier eissn | 1528-8889 | |
| keywords | Fatigue | |
| keywords | Stress | |
| keywords | Welded joints AND Interferometry | |
| tree | Journal of Engineering Materials and Technology:;2001:;volume( 123 ):;issue: 001 | |
| contenttype | Fulltext |