An Investigation of Simple Finite Elements Via the Hu-      Washizu Theorem
{'Code': '07030000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CMMI', 'LongName': 'Div Of Civil, Mechanical, & Manufact Inn'}}
{'SignBlockName': 'William Hakala', 'PO_EMAI': None, 'PO_PHON': None}
Numerous theories for continuous elastic and elastic-plastic bodies are         known to give acceptable results for many practical problems.  While            the search for better theories of nonlinear and inelastic behavior              continues, the search also continues for methods of discrete                    approximations which provide accurate, reliable and economical means to         utilize existing theories and computational facilities.  The research           will focus on the behavior and inherent difficulties in the simple              triangular and quadrilateral elements, in particular, excessive                 stiffnesses associated with transverse shear deformations.  The                 Hu-Washizu theorem will be employed as a tool to gain insights, to              trace the origins of the stiffnesses and to provide rational bases for          an effective "flat" element.  The study will also explore rational              means to implement discrete (Kirchhoff) constraints against transverse          shear.
{'FirstName': 'Gerald', 'LastName': 'Wempner', 'PI_MID_INIT': 'A', 'PI_SUFX_NAME': None, 'PI_FULL_NAME': 'Gerald A Wempner', 'EmailAddress': None, 'NSF_ID': '000339152', 'StartDate': '07/01/1985', 'EndDate': None, 'RoleCode': 'Principal Investigator'}
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{'Code': '1442', 'Text': 'CONSTRUCTION AND INFRASTRUCTUR'}
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