Tensile creep behaviour of a fibre-reinforced SiC-Si3N4 composite

Tensile Creep and Creep-Recovery Behavior of a SiC-Fiber─Si3N4-Matrix Composite

The tensile creep and creep-recovery behavior of a unidirectional Sic-fiher/Si,N,-matrix composite was investigated at 1200°C in air. A primary objective of the study was to determine how various sustained and cyclic creep loading histories would influence the creep rate, accumulated creep strain, and the amount of strain recovered upon specimen unloading. The key results obtained from the inve...

Finite element modelling of creep deformation in fibre-reinforced ceramic composites

The tensile creep and creep-recovery behaviour of a unidirectional SiC fibre-Si3N4 matrix composite was analysed using finite element techniques. The analysis, based on the elastic and creep properties of each constituent, considered the influence of fibre-matrix bonding and processing-related residual stresses on creep and creep-recovery behaviour. Both twoand threedimensional finite element m...

Mechanical Properties of SiC Fiber- Reinforced Reaction-Bonded Si3N4 Composites

Tensile creep behaviour of polymethylpentenesilica nanocomposites

For the first time, poly(4-methyl-1-pentene) (PMP) nanocomposites were prepared by melt compounding 2 vol% of fumed silica nanoparticles, in order to study the role of the nanofiller surface area and functionalization on the tensile mechanical response of the material, with particular focus on its creep behaviour. The high optical transparency of the polymer matrix was substantially preserved i...

Synergetic Use of Thermal and Acoustic Emission in Studying Tensile Behaviour of Fibre Reinforced Composites

The possibility to combine the use of acoustic emission and thermal emission as real-time monitoring techniques on carbon-epoxy composites is the subject of this paper. Tensile tests are therefore performed, using a cross-head speed not too high so to enable a reliable detection of acoustic emission signals, but suitable also for the needs of the thermal emission technique,. The latter techniqu...