ANALYSIS OF HIGH PERFORMANCE CONCRETE BEHAVIOUR: FRACTURE MECHANICS APPROACH

Simulation of crack evolution

RESEARCH PROJECT

EPUSP, FAPESP, 1998

José Umberto Arnaud Borges

 

 

This research program, developed under the advisorship of Prof. Túlio Nogueira Bittencourt, aims at the experimental investigation of high performance concrete behaviour based on Fracture Mechanics concepts. The investigation will be conducted so as to apply these concepts to modeling of reinforced concrete failure and to yield some contribution to the formulation of criteria to the assessment of structural safety of high performance concrete structures.

This research is being developed at the Laboratory of Structures and Structural Materials of the Department of Structural Engineering of Politechnic School of the University of Sao Paulo (EPUSP-Brazil), and is part of a broader research on experimental investigation and numerical simulation of concrete failure based on Fracture Mechanics concepts, under the supervision of Prof. Túlio Nogueira Bittencourt.

An international cooperation program has been established with some important research centers of concrete fracture: Cornell University, University of Missouri and Texas Transportation Institute (USA), University of Wales (GRA) and State University of Campinas (BRA). This cooperation program intends to assess the reproductability of tests of concrete fracture using cylindrical (short-rod) specimens, which are carried at the various research centers, as well as to provide an adequate infra-structure for concrete fracture tests at EPUSP.

 

 

The main goals of this research are:

sistematic analysis of Fracture Mechanics experimental methods applicable to high performance concrete;

experimental investigation of high performance concrete behaviour based on Fracture Mechanics concepts;

establishment of criteria to assess structural safety of high performance concrete structures based on Fracture Mechanics, which may, eventually, be introduced in design codes;

application of Fracture Mechanics parameters to structural design of high performance reinforced concrete members;

investigation of size effect of high performance concrete.

 

See also:

short-rod specimen

cooperation program

high performance concrete

 Laboratory of Structures and Structural Materials

Last updated: 08/25/98