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Prediction of dissipative properties of flax fibers reinforced laminates by vibration analysis Marouane BELAÏD 1, a *, Stéphane FONTAINE 1,b, Ali EL HAFIDI 1,c , Papa- Benoît PIEZEL 1,c, Papa-Birame GNING 1,c, 1DRIVE EA1859, Univ.
a*marouane.belaid@u-bourgogne.fr, bstephane.fontaine@u-bourgogne.fr, cali.el_hafidi@u-bourgogne.fr Keywords: Laminates, damping, viscoelasticity, frequency, vibration.
Initially introduced by Wojtowicki et al. [7], this device allows high-length beams characterization on a large frequency bandwidth.
Table 1: Identified parameters of fractional derivative Zener model Paramètres EL ET E45 E1 (GPa) 22,0 4,9 7,0 E2 (GPa) 2,1 2,3 2,0 μ (Pa.s) 46 643 13 606 α 0,238 0,160 0,159 Fig. 3: Experimental and analytic frequency dependence on [0°]8 storage modulus and loss factor Fig. 4: Experimental and analytic frequency dependence on [90°]8 storage modulus and loss factor Fig. 5: Experimental and analytic frequency dependence on [±45]2s storage modulus and loss factor In a second step, moduli and loss factors have been experimentally measured on a quasi-isotropic laminate [45/-45/90/0]s.

[3] ČERNÝ, M. et al.
U. et al.
G. et al: Corros.
[19] EL-MAHDY, G.
A. – et al.

Calculate the ion current density for Ti and Al; 2.
Calculate the percentage of ions of Al and Ti; 3.
Based on the distribution of Ti and Al ion fluxes and Ti-Al phase diagram identified areas of coating formation on the basis of intermetallic Ti-Al phase composition and certain defined modes of operation.
This work was supported by the Ministry of Education and Science of the Russian Federation Literature References [1] E.L.
[6] V.Budilov et al: Mat.

El Ghazi, W.
El Kadmiri, A.
El Kadmiri, F.
Kerkour El Miad, D.
Z., Falyouni, F., Kerkour-El Miad, A., & Bria, D.

The importance of this element in the industry nowadays had made researchers pay their attention on developing the methods to exploit the low grade manganese ores (Pagnanelli et al., 2004).
This is similar to what was reported by Ismail et al. (2013).
El Hazek, A.S.
El-Hazek, A.S.
El-Nagar. (2009).

Al-3.9wt.
In present work, Al-3.9wt.
Experimental Procedure Cast commercial Al-3.9wt.
Results and discussion Fig. 1 shows the microstructure of Al–3.9%Cu samples.
El-Danaf, M.S.

Both TiH2 and Al-V particles were generally angular in shape.
This result shows that Al atoms diffuse more rapidly from the original Al60V40 master alloy particles to Ti matrix, resulting in faster Al homogenization compared with V.
The same results have already been reported by other research groups, as Al atoms has a higher diffusivity in the ternary Ti-Al-V alloys than V [3, 16].
After heat treatment, the YS, FS and EL changed to 1280MPa, 1372MPa and 0.4% respectively.
Komatsu, Interdiffusion in β Phase of the Ternary Ti-Al-V System, Mater.

Barsoum and El-Raghy [9] successfully synthesized high purity Ti3SiC2 poly crystals by hot-pressing (HP) or hot isostatic pressing (HIP) a powder mixture of titanium, graphite and SiC, in which TiC phase was reduced to an amount of about 2.0% by volume.
Sun, et al. [11,12] fabricated bulk samples with about 99% Ti3SiC2 by pulse discharge sintering Ti, Si and TiC mixture at relative low temperature of 1250~1300 o C.
Recently, Zhu et al. [13] investigated the effect of aluminum on the reaction synthesis of Ti3SiC2 and fabricated essentially single-phase Ti3SiC2 with addition of aluminum by HP or SPS technique.
Though 0.05 Al (molar rate) was added, the sample still contains 21.6vol.% TiCx.
El-Baghy: J.

The objective of this work is aimed to confirm the theoretical results that An et al [5], Bennacer et al [6] and Verhoeven et al [7] found that the IVB method reduces the micro-segregation as compared to the VB method, producing samples more homogeneous, and the influence of convective flows in the formation of dendrites in eutectic alloys.
The graphics shows that the density profile and distribution of the solute are closer to the nominal values, confirming the reduction in convection and consequently the micro-segregation of the solute in the IVB method when compared to the VB method, as predicted by An et al [5] and Bennacer et al [6].
The results obtained by both densitometry and microstructural analysis are consistent with the theory of Verhoeven et al. [7].
El Ganaoui, E.
El Ganaoui, E.

El-Gohary, W.
El-Ghareb, M.
El-Gohary, A.
El Hadidi, H.
El-Gohary, M.