Prediction of mixed-mode cracking direction in random, short-fibre composite materials

Machining of Fibre Reinforced Plastic Composite Materials

Fibre reinforced plastic composite materials are difficult to machine because of the anisotropy and inhomogeneity characterizing their microstructure and the abrasiveness of their reinforcement components. During machining, very rapid cutting tool wear development is experienced, and surface integrity damage is often produced in the machined parts. An accurate selection of the proper tool and m...

Mixed Mode Crack Propagation of Zirconia/Nickel Functionally Graded Materials

Zirconia-nickel functionally graded materials were obtained by powder metallurgy technique. The microstructure, residual stress, fracture toughness and Vickers hardness were investigated. Mixed-mode fracture response of YSZ /Ni functionally graded materials was examined utilizing the three point bending test and finite element method (Cosmos/M 2.7). The results show that the stress intensity fac...

Coupled, multiple cracking systems in multilayered composite materials

Multidirectional composite laminates have been increasingly used as primary load-bearing structures in many applications such as aircraft frames, wings, and turbine or wind-mill blades, owing to their excellent weight-to-strength ratios, better environmental resistance, and much improved long-term durability. Such highperformance polymer matrix composites typically consist of dozens of unidirec...

Effects of defects on the tensile strength of short-fibre composite materials

Sintering behaviour of composite materials borosilicate glass-ZrO2 fibre composite materials

The characteristics and properties of mixtures of a borosilicate glass and ZrO2 fibres obtained from compacts isothermally sintered are presented. Three different particle sizes of glass powder and different sintering temperatures and times have been used to reveal the influence of the specific surface area and the glass matrix viscosity on sintering. The fundamental developed aspects are the s...