Residual Stresses in Resistance Welding
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'F. Hank Grant', 'PO_EMAI': None, 'PO_PHON': None}
This proposal is to develop a simulation of the spot welding               process using finite element techniques to portray the coupled                  electrical, thermal, and mechanical cycles seen during this type of             welding.  This simulation will allow study of how variations in                 process parameters affect weld formation.  Of particular interest are           the size of the weld nugget formed and the magnitude of the                     residual stresses in the weld zone which can be related to fatigue life         of the weld.  This type of analysis to determine the residual stresses          in the weld zone is novel.  Experimental work to validate the approach          is planned.                                                                          Spot welding is an important manufacturing process, especially for         the automotive industry.  This research can lead to a better                    understanding of residual stress development in this type of welding and        to valuable design guidelines.
{'FirstName': 'Sheri', 'LastName': 'Sheppard', 'PI_MID_INIT': 'D', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Sheri D Sheppard', 'EmailAddress': 'sheppard@stanford.edu', 'NSF_ID': '000338066', 'StartDate': '11/15/1987', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Stanford University', 'CityName': 'STANFORD', 'ZipCode': '943052004', 'PhoneNumber': '6507232300', 'StreetAddress': '450 JANE STANFORD WAY', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'California', 'StateCode': 'CA', 'CONGRESSDISTRICT': '16', 'CONGRESS_DISTRICT_ORG': 'CA16', 'ORG_UEI_NUM': 'HJD6G4D6TJY5', 'ORG_LGL_BUS_NAME': 'THE LELAND STANFORD JUNIOR UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1467', 'Text': 'MATERIALS PROCESSING AND MANFG'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1986&All=true', 'xml': '8618462.xml'}