Superplastic Process Modeling and Material Characterization Study of Selected Metal Alloys
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'Jorn Larsen-Basse', 'PO_EMAI': None, 'PO_PHON': None}
The primary objective of this project is to develop mathematical                process models for selected superplastic sheet metal pressure                   (blow) forming operations.  The rate-sensitive properties of                    superplastic metals make it imperative that the strain-rate                     during forming be controlled to optimize their forming                          charateristics.  A controlled pressurization schedule is thus                   necessary for accurate process control.  The purpose of the                     models is to predict: (a) the pressure-time loading cycle to                    maintain optimum forming conditions, i.e., maximum ductility and                minimum cavitation, and (b) the thickness distribution in the                   formed part.  Constitutive equations will be developed                          experimentally under both uniaxial and biaxial conditions for                   input to the models.  Hydrostatic pressure requirements to                      suppress cavitation will also be studied.  A new numerical                      procedure using membrane elements developed by the authors will                 be investigated as well as non-linear finite element methods.                   The alloys tested include selected Aluminum-Lithium alloys as                   well as 6A1-4V Titanium.
{'FirstName': 'Ramon', 'LastName': 'Goforth', 'PI_MID_INIT': 'E', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Ramon E Goforth', 'EmailAddress': 'CDA2958@TAMUENG.BITNET', 'NSF_ID': '000377416', 'StartDate': '02/01/1989', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'Texas A&M Research Foundation', 'CityName': 'COLLEGE STATION', 'ZipCode': '778454375', 'PhoneNumber': '9798626777', 'StreetAddress': '400 HARVEY MITCHELL PKWY S STE 3', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Texas', 'StateCode': 'TX', 'CONGRESSDISTRICT': '10', 'CONGRESS_DISTRICT_ORG': 'TX10', 'ORG_UEI_NUM': 'EQH8NQ4AXFT7', 'ORG_LGL_BUS_NAME': 'TEXAS A & M RESEARCH FOUNDATION', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '144600', 'Text': 'MATERIALS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1988&All=true', 'xml': '8814689.xml'}