A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fracture energy and strain softening of concrete as determined by means of compact tension specimens
Abstract Fracture mechanics parameters of concrete are determined by means of the compact tension (CT) test. The effects of ligament length, rate of loading and concrete composition on the specific fracture energy GF and the strain-softening diagram are investigated. As a first approximation of the real softening behaviour of concrete, a bilinear strain softening diagram is used in a finite-element analysis. A parameter study shows that several bilinear diagrams can represent the real behaviour equally well. With the bilinear softening diagram, a good agreement between both calculated and measured load-displacement curves and GF-values is obtained. The determined strain-softening diagrams are transformed into a normalized presentation. For each investigated testing condition, characteristics shapes of this normalized strain-softening diagram are obtained.
Fracture energy and strain softening of concrete as determined by means of compact tension specimens
Abstract Fracture mechanics parameters of concrete are determined by means of the compact tension (CT) test. The effects of ligament length, rate of loading and concrete composition on the specific fracture energy GF and the strain-softening diagram are investigated. As a first approximation of the real softening behaviour of concrete, a bilinear strain softening diagram is used in a finite-element analysis. A parameter study shows that several bilinear diagrams can represent the real behaviour equally well. With the bilinear softening diagram, a good agreement between both calculated and measured load-displacement curves and GF-values is obtained. The determined strain-softening diagrams are transformed into a normalized presentation. For each investigated testing condition, characteristics shapes of this normalized strain-softening diagram are obtained.
Fracture energy and strain softening of concrete as determined by means of compact tension specimens
Wittmann, F. H. (author) / Rokugo, K. (author) / Brühwiler, E. (author) / Mihashi, H. (author) / Simonin, P. (author)
Materials and Structures ; 21 ; 21-32
1988-01-01
12 pages
Article (Journal)
Electronic Resource
English
Fracture energy and strain softening of concrete as determined by means of compact tension specimens
| Online Contents | 1988
Fracture energy and tension softening relation for nanomodified concrete
| British Library Online Contents | 2015
Strain-softening of concrete in uniaxial tension
Online Contents | 1997
Fracture and Tension Softening of High Performance Fibrous Concrete
| British Library Conference Proceedings | 2004
Tension Softening Curves of Concrete Determined from Different Test Specimen Geometries
| British Library Conference Proceedings | 1998