In the 25 MPa concrete, the Young's modulus of fibres was more effective on their reinforcement than the tensile strength, thus the recycled PP fibre produced better reinforcement than that of virgin PP fibre.
A parametric analysis of the effect of fibre volume fraction, Weibull modulus of fibres and interfacial shear stress in overall composite performance is presented in view of the ability of the model to serve as an a priori fracture prediction tool.
The effect of the thickness and Young's modulus of the fibre coating on the local stress distributions around an optical fibre sensor embedded in the 0° ply of a cross-ply GFRP laminate has been determined using finite element analysis.
The tensile strength and modulus of blend fibre increased with TLCP content and spin draw ratio.
It is demonstrated that the studied stress concentration can be reduced with the increase of the modulus of carbon fibre and the number of CFRP layers.
Three analytical models are developed for prediction of the longitudinal Young's modulus of carbon fibre composite materials containing fully interlaced 3D-woven textile reinforcement.
A full factorial design on 128 composites samples has been performed to identify the effect of the location, weight fraction and type of particles over the bulk density, flexural strength and modulus of glass fibre composites.
Through the conversion from cellulose I into II, IIII and IVI, the integral crystallinity index and the crystallite size decreased and the internal surface area increased while Young's modulus of the fibre decreased and the ultimate strain increased.
The cumulative annual ring-area-weighted moving average proceeding from the pith to the ith cambial age was calculated for density, microfibril angle, modulus of elasticity, fibre coarseness, tracheid wall thickness, tracheid dimensions (radial and tangential diameters) and specific surface area.
By definition, the critical damage area is δ 2. As the damage area increases, the modulus of the fibre tows degrades as {E}^i={E}_0^ileft[1-{left(frac{DA-D{A}_f^i}{CDA}right)}^2right], (42 where E i is the E 11 Young's Modulus at point i. ( {E}_0^i ) is the undamaged modulus.
