THE TOUGH TO BRITTLE TRANSITION IN BRITTLE MATRIX COMPOSITES
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Local mechanical properties LMP 2015, November 12-14, 2014, Stará Lesná, Slovakia. Many alloys and composites combine a ductile matrix with discrete reinforcing phases, such as the ceramic fibers or particles that are used in metal matrix composites. It is ...
Toughness in Ceramic Matrix Composites (CMCs) is achieved if crack deflection can occur at the fiber/matrix interface, preventing crack penetration into the fiber and enabling energy-dissipating fiber pullout. To investigate toughening in nanoscale CMCs, d ...
For the design of SFRC members, the most fundamental material property is its post cracking residual tensile strength. When relying on physical models to describe structural behaviour under load, the material laws must first be accurately established. If t ...
VIII International Conference on Fracture Mechanics of Concrete and Concrete Structures, FraMCoS-82013
The effect of titanium additions on the interface and mechanical properties of infiltrated Cu8 wt%Al-Al2O3 composites containing 57 +/- 2 vol% ceramic are investigated, exploring two different Al2O3 particle types and four different Ti concentrations (0, 0 ...
Flat-slab column connections are susceptible to brittle failure, which lead to the necessity of improving ductility and ultimate strength. In case of edge connections, the behaviour at ultimate state is highly influenced by nonsymmetrical distribution of s ...
Ultra-High Performance Fibre Reinforced Concrete (UHPFRC)is charact erized by aunique combination of extremely low permeability, high strength and deformability. Extensive R&D works and applications over the last 10 years have demonstrated that cast on sit ...
Nanofibers used in current ceramic matrix composites (CMCs) are usually wavy and of finite length. Here, a shear-lag model for predicting the tensile strength and work of fracture of a composite containing a "single matrix crack", as a function of all the ...
The tensile failure of unidirectional alumina fibre reinforced aluminium is studied in uniaxial loading along the fibre axis. The tensile strength is measured as a function of matrix yield strength, which is varied by varying the testing temperature, from ...
We perform two-dimensional dynamic fracture simulations of a specimen in biaxial tension, incorporating various distributions of pre-existing microcracks. The simulations consider the spatial distribution of flaws while modeling the discrete failure proces ...
A model for predicting composite material strength degradation under elevated and high temperatures is proposed. This model is based on the morphology of the mixture of materials in different states. The degradation of resin-dominated shear strength can be ...