A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Fracture mechanics of brick masonry: size effects and snap-back analysis
Abstract Fracture energy,G F, and the critical value of stress-intensity factor,K IC, are determined for brick masonry specimens tested in bending with different notch depths. The experimental results are compared with numerical simulations, obtained through a cohesive crack model developed originally for concrete. Theoretical and experimental load-deflection curves present very similar softening branches. In some cases, a snap-back instability is predicted by the model and confirmed by the experimental data. A size-scale transition appears evident from an ultimate strength collapse at the ligament to a brittle fracture due to stress-intensification. Such a transition demonstrates that LEFM is a very suitable model for brick masonry structures at the usual size-scale. A non-dimensional brittleness number is introduced as a measure of the LEFM applicability.
Fracture mechanics of brick masonry: size effects and snap-back analysis
Abstract Fracture energy,G F, and the critical value of stress-intensity factor,K IC, are determined for brick masonry specimens tested in bending with different notch depths. The experimental results are compared with numerical simulations, obtained through a cohesive crack model developed originally for concrete. Theoretical and experimental load-deflection curves present very similar softening branches. In some cases, a snap-back instability is predicted by the model and confirmed by the experimental data. A size-scale transition appears evident from an ultimate strength collapse at the ligament to a brittle fracture due to stress-intensification. Such a transition demonstrates that LEFM is a very suitable model for brick masonry structures at the usual size-scale. A non-dimensional brittleness number is introduced as a measure of the LEFM applicability.
Fracture mechanics of brick masonry: size effects and snap-back analysis
Bocca, Pietro (author) / Carpinteri, Alberto (author) / Valente, Silvio (author)
Materials and Structures ; 22 ; 364-373
1989-09-01
10 pages
Article (Journal)
Electronic Resource
English
Crack Opening Displacement , Linear Elastic Fracture Mecha , Cohesive Zone , Crack Mouth Opening Displacement , Notch Depth Engineering , Theoretical and Applied Mechanics , Structural Mechanics , Mechanical Engineering , Operating Procedures, Materials Treatment , Civil Engineering , Building Materials
Fracture mechanics of brick masonry: size effects and snap-back analysis
| Online Contents | 1989
Snap-Back Analysis of Fracture Evolution in Multi-cracked Masonry Arches
| Springer Verlag | 2023
Fracture mechanics in the characterization of brick masonry structures
| British Library Online Contents | 2001
Fracture mechanics in the characterisation of brick masonry structures
| Online Contents | 2001