DIRECT FEM ANALYSIS OF CONCRETE FRACTURE SPECIMENS

The paper reports a direct numerical procedure that extracts the fracture parameters and also predicts fracture responses of concrete fracture specimens. The procedure involves a finite element analysis of the fracture specimen together with an optimization program for incorporating the overdeterministic boundary conditions. The hybrid procedure can be used to accurately determine the crack closure stress versus crack opening displacement (COD) relationship directly from test data. A continuous crack closure stress versus COD relationship, which is material-dependent but specimen-independent, for concrete fracture specimens, was found.

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  • Accession Number: 00493853
  • Record Type: Publication
  • Files: TRIS, ATRI
  • Created Date: Apr 30 1990 12:00AM