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A shake table test on such structural system has been performed by Zhao et al. [1] that indicate the dynamic characteristics are complex and the torsional mode has become the first mode of the structure.
Four earthquake records, El Centro, Kobe, Wenchuan Wolong and SHW2 artificial earthquake wave, are chosen as the shake table input accelerations.
Fig. 5 shows TMD at 2nd provided the best torsional control effect for all floors including the top floor under El Centro, Kobe and SHW2 waves.
(a) Acceleration in X direction of the model under El Centro (b) Acceleration in Y direction of the model under El Centro (c) Acceleration in X direction of the model under Kobe (d) Acceleration in Y direction of the model under Kobe (e) Acceleration in X direction of the model under Wolong (F) Acceleration in Y direction of the model under Wolong (g) Acceleration in X direction of the model under SHW2 (h) Acceleration in Y direction of the model under SHW2 Fig. 3 Maximum acceleration distributions along the floors (a) Displacement in X direction of the model under El Centro (b) Displacement in Y direction of the model under El Centro (c) Displacement in X direction of the model under Kobe (d) Displacement in Y direction of the model under Kobe (e) Displacement in X direction of the model under Wolong (F) Displacement in Y direction of the model under Wolong (g) Displacement in X direction of the model under SHW2 (h) Displacement in Y direction
of the model under SHW2 Fig. 4 Maximum displacement distributions along the floors (a) Rotation angle of the model under El Centro (b) Rotation angle of the model under Kobe (c) Rotation angle of the model under Wolong (d) Rotation angle of the model under SHW2 Fig. 5 Maximum rotation distributions along the floors Conclusions In this research, A reduced-scale model is designed, constructed and the bidirectional TMD system is employed to reduce the torsional responses of the structure under seismic condition.

A new constitutive model describing the plastic flow of metals: Application to the AA6082 aluminum alloy Mohamad El Mehtedi1,a, Samer El Mohtadi2,b and Stefano Spigarelli3,c 1,2,3DIISM, Università Politecnica delle Marche, Ancona, Italy aelmehtedi@univpm.it, bs.i.elmohtadi@univpm.it, cs.spigarelli@univpm.it Keywords: Hot working, constitutive equations, aluminum alloys Abstract.
Experimental procedure The alloy considered in the present study was the AA6082 (Al-0.96%Si-0.65%Mg-0.18%Fe, composition in wt.%).
In b) the experimental data and the curves calculated by Li et al [1] for the AA7050 by Eqns.1 and 2 are illustrated.
Only above a certain stress level, dislocations break away from solute atom atmospheres and can freely glide; in this case, deformation becomes climb-controlled, n=5 and Q is equivalent to the activation energy for self-diffusion in Al (143 kJ/mol) [7].
El Mehtedi, L.

In another study, Hofmann et al. used textile components in composite components to monitor bending.
Lee et al. demonstrated using TDR to measure stretchable conductor strain [23].
Light microscope pictures of the sensor’s cross section, from left to right: LK-EL-F9, SK-EL-F9/8, SK-PA-F8 Table 1.
Gauge factor, linearity, and drift of base capacitance Variant SK-EL-F9 SK-EL-F8 SK-PA-F8 LK-EL-F9 Gauge factor 0.25 0.3 0.17 0.29 Linearity 0.016 0.02 0.008 0.019 Base capacitance drift from C0 [%] 5.6 5.4 3.5 1 Fig. 6.
Gauge factors and corresponding linearity through compression Gauge factor Linearity SK-EL-F9 0.007 0.0015 SK-EL-F8 0.01 0.0047 SK-PA-F8 0.005 0.0024 LK-EL-F9 0.0027 0.0091 Strain Localization Through TDR.

Dry sliding wear resistance of the in situ Al2O3/Al-Si composites fabricated in Al-SiO2 by reaction hot pressing.
El Oualid.
But, Anand et al [7] also found that the incorporation of more than 30 wt.% of Al2O3 in Al-10wt.% Zn further deteriorated the wear resistance.
Tech. 57(1997)415–435 [9] El Oualid.
Zoheir, Effect of porosity on dry sliding wear of Al–Si alloys, Tribol.

However, Makadir et al [4] used to normalize damage to characterize an Acrylonitrile-butadiene-styrene (ABS) polymer plate under uniaxial loading.
Main feature the influence of the notch on the behavior of Polyvinyl chloride (PVC) pipes, Arid et al [5] used normalized damage formulation on notched plat specimens.
[3] El Ghorba,M.
[9] Wahid, Ashraf, et al.
[12] M.El Ghorba,” Evolution of the damage and the crack propagation under cyclic loading the A 36 steel and aluminium 6351-T6’’Master memory, Montreal University, Canada,198.

However the macrosegregation has been a key problem for DC casting of 2524 alloy due to the high segregation tendency of copper in Al-Cu alloys.
Experimental procedure The commercial aluminium alloy 2524, Al-4.3Cu-1.45Mg-0.65Mn-0.02Ti (all in wt%), was used in the present work.
[3] M O El-Bealy, Modeling of Heat Transfer and Interdendritic Strain for Exuded Surface Segregation Layer in the Direct Chill Casting of Aluminum Alloys.
[6] M O El-Bealy, On the formation of extruded surface segregation layer in aluminum direct chill casting process.
[17] C J Vreeman, F P Incropera, The effect of free-floating dendrites and convection on macrosegregation in direct chill cast aluminum alloys: Part II: predictions for Al-Cu and Al-Mg alloys.

E-beam deposition of a Ti/Al alloy was followed by rapid thermal processing annealing at 1000oC for 5 min in nitrogen in order to fabricate Ohmic contacts with a thickness of 100 nm to the pregion.
In Fig. 2(a) we present schematically the evolution of a rhombic stacking fault observed in our experiment, following the model of Skowronski et al. [6] for the formation of a rhombic SF.
Contrary to EBIC results, EL investigations of dislocation loops have previously shown that the Si- and C-core partials have different luminescence intensities.
As mentioned above, EL is sensitive only to radiative recombination whereas the intensity of EBIC contrast depends on the rate of both radiative and nonradiative recombination.
This provides a possible explanation for dissimilarly visualized Si- and C-core partials by EBIC and EL.

Brownjohn et al. [1] used numerical method to analysis pedestrian response to high and low frequency slabs.
El-Dardiry et al. [2] used elastic modulus transfer method to find the complex steel structure with concrete slab neutral axial offset effect to the slab Eigen frequency.
Tsay, R.J. et al. [11] found in 5% rubber concrete admixture ratio will get optimal material bending strength.
M., El-Dieb, A.
S., Abd El-Wahab, M.

Select EL-Centro wave,Tangshan wave,artificial wave for time history analysis on 8 degrees frequent earthquake, Enter the peak acceleration is 70cm/s2.
In frequent earthquake,EL-Centro wave and Tangshan wave is inputed respectively, structure with and without Lead Rubber Bearings were analyzed, the top acceleration time history curve as shown in figure 4 and figure 5, the top of the maximum acceleration shown in Table 2.
Figure.4 Acceleration time-history at top floor of structure with and without Lead Rubber Bearings under EL-Centro wave frequent earthquake Figure.5 Acceleration time-history at top floor of structure with and without Lead Rubber Bearings under Tangshan wave frequent earthquake Table.2 Maximum acceleration, contrast under EL-Centro wave and Tangshan wave (m/s2) Seismic Condition EL-Centro wave Tangshan wave X Direction Y Direction X Direction Y Direction General Structure 2.29 1.95 2.20 2.34 Isolated Structure 0.51 0.42 0.54 0.66 Reduction rate 77.7% 78.4% 75.4% 71.8% As the top acceleration response in Figure 4 and figure 5 can be seen, in frequent earthquake structure with Lead Rubber Bearings has larger effect on attenuation peak position acceleration.
The isolated structure maximum storey drift respectively is 3.36mm, 4.24mm and 3.68mm under the action of EL-Centro wave, Tangshan wave and artificial wave.
[5] Kim Y J,Kim M H,Jung I Y,et al.Experimental investigation of the cyclic behavior of nodes in diagrid structures[J].Engineering Structures,2011,33 (7):2134-2144

Introduction In recent years, some researches had been performed on inclined CFST stub columns, such as Han et al. [1] and Han et al. [2].
The longitudinal and transverse steel fibers are in compression and tension, respectively, and the longitudinal strains (el) and the transverse strains (et) are denoted as positive and negative, respectively.
ic1-1 ic1-2 ic2-1 ic2-2 ich1-1 ich1-2 Δ(mm) Nv(kN) Fig. 4 Vertical load (Nv) versus vertical displacement (Δ) relationship Before the steel tube yields, el and et are generally uniformed along the specimen.
Nv(kN) ε(με) εy=1982με εy=-1982με et eL (ic1-1) (ic1-1) (ic2-1) (ic2-1) (ich1-1) (ich1-1) el et el et el et Fig. 5 Typical vertical load (Nv) versus strain (ε) relationship Analyses Strength index.