Experimental Investigation of Fracture in Opaque Materials
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'Devendra P. Garg', 'PO_EMAI': None, 'PO_PHON': None}
Dynamic crack propagation in metals and ceramics will be studied in             this experimentally oriented research program. A new and versatile              experimental technique, which utilizes miniature strain gages, will             be developed to evaluate a fracture parameter, the J-integral.  This            strain gage technique together with the established birefringent                coating and caustics techniques will be used to analyze rapid crack             propagation in opaque materials.  This study will identify the                  material and structural parameters, which govern the run and arrest             phenomena of a crack, for designing crack arresters in safe fail                structures. Dr. Shukla will also continue his empirical modelling of            crack curving and branching using photoelasticity.  He will initiate            a new crack branching study of 4340 steel subjected to uniaxial and             biaxial loadings.  Such study should lead to a better understanding             of the material removal process in machining of metals and the design           of armor and antiarmor devices. Although young, Dr. Shukla has                  already established himself as a competent and meticulous                       experimentalist in the field of dynamic fracture.
{'FirstName': 'Arun', 'LastName': 'Shukla', 'PI_MID_INIT': None, 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Arun Shukla', 'EmailAddress': 'shuklaa@egr.uri.edu', 'NSF_ID': '000234914', 'StartDate': '02/01/1988', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
{'Name': 'University of Rhode Island', 'CityName': 'KINGSTON', 'ZipCode': '028811974', 'PhoneNumber': '4018742635', 'StreetAddress': '75 LOWER COLLEGE RD RM 103', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'Rhode Island', 'StateCode': 'RI', 'CONGRESSDISTRICT': '02', 'CONGRESS_DISTRICT_ORG': 'RI02', 'ORG_UEI_NUM': 'CJDNG9D14MW7', 'ORG_LGL_BUS_NAME': 'UNIVERSITY OF RHODE ISLAND', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1441', 'Text': 'MECHANICS'}
{'url': 'https://www.nsf.gov/awardsearch/download?DownloadFileName=1987&All=true', 'xml': '8719567.xml'}