A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Assessment of concrete fracture mechanics properties via Electronic Speckle Pattern Interferometry (ESPI)
Concrete is a quasi-brittle material. In deformation controlled axial tensile tests of concrete prisms, one observes a gradual softening after reaching the maximum load. The reason for this softening is primarily caused by the heterogenity of concrete. In contrast to linear-elastic fracture mechanics, the tensile fracture of concrete is not combined with a discrete crack but with a fracture process zone (FPZ), a densely microcracked volume. The width of the FPZ was quoted to be 2-3 times the maximum aggregate size. The experimental evidence of this estimation is still lacking. The aim of the presented investigations is to determine the size of the FPZ because of its major importance in material and structural modeling.
Assessment of concrete fracture mechanics properties via Electronic Speckle Pattern Interferometry (ESPI)
Concrete is a quasi-brittle material. In deformation controlled axial tensile tests of concrete prisms, one observes a gradual softening after reaching the maximum load. The reason for this softening is primarily caused by the heterogenity of concrete. In contrast to linear-elastic fracture mechanics, the tensile fracture of concrete is not combined with a discrete crack but with a fracture process zone (FPZ), a densely microcracked volume. The width of the FPZ was quoted to be 2-3 times the maximum aggregate size. The experimental evidence of this estimation is still lacking. The aim of the presented investigations is to determine the size of the FPZ because of its major importance in material and structural modeling.
Assessment of concrete fracture mechanics properties via Electronic Speckle Pattern Interferometry (ESPI)
Hariri, K. (author)
2001
6 Seiten, 6 Quellen
Conference paper
English
Two-dimensional Electronic Speckle Pattern Interferometry (2D-ESPI) and Concrete Fracture Processes
| British Library Conference Proceedings | 1993
| British Library Conference Proceedings | 2002
Application of Electronic Speckle Pattern Interferometry (ESPI) to Observe the Fracture Process Zone
| British Library Conference Proceedings | 1996
Two-dimensional Electronic-speckle-pattern Interferometry and Concrete-fracture Processes
| British Library Online Contents | 1994