Search results

Though analysis, the specific calculation results and Consistency tests are as follows: Table.2 Index weigh table for object hierarchy A(quality supervision department) A B1 B2 B3 B4 weighted value CI RI CR B1 1 2 1/6 1/4 0.0845 4.2299 0.0766 0.8930 0.0858 B2 1/2 1 1/7 1/5 0.0552 B3 6 7 1 5 0.6312 B4 4 5 1/5 1 0.2291 Table.3 Index weigh table for object hierarchy A(detecting department) A B1 B2 B3 B4 weighted value CI RI CR B1 1 2 1/6 1/4 0.0876 4.1639 0.0546 0.8930 0.0612 B2 1/2 1 1/7 1/5 0.0570 B3 6 7 1 4 0.6067 B4 4 5 1/4 1 0.2487 Table.4 Index weigh table for object hierarchy A(quality assessment committee) A B1 B2 B3 B4 weighted value CI RI CR B1 1 1 1/6 1/4 0.0761 4.1226 0.0409 0.8930 0.0458 B2 1 1 1/6 1/4 0.0761 B3 6 6 1 4 0.6043 B4 4 4 1/4 1 0.2434 The test coefficient of judging matrix carried out by each department is CR＜0.1 which shows that judging matrix is in satisfactory consistency, so That is to say the weight of material property, the construction
By the above method to bridge reinforcement quality assessment test scores as follows: Table.7 Bridge reinforcement quality test result (Test items) Test scores Weight (%) Material properties B1 Carbon fiber sheet C1 86.5 2.83 8.34 Steel C2 86.1 4.53 Tackiness agent C3 82.4 0.64 Repair and protective materials C4 87.6 0.34 Construction scheme B2 Construction organization management C5 88.4 1.02 6.24 Construction technological process C6 89.8 4.70 Safety civilized construction and environmental protection C7 86.4 0.52 Construction quality B3 Concrete strength C8 92.5 2.32 Combination of surface treatment C9 88.4 4.00 Steel-bar installation C10 88.4 1.36 Positioning of steel strands C11 86.5 4.06 Tensioning of steel strands C12 94.4 28.58 Anchorage of members C13 88.4 12.66 61.1 Security check of anchorage and rotate equipments C14 82.1 8.12 Appearance quality B4 The size of appearance C15 93.8 10.94 24.3 The surface appearance C16 85.9 13.38 From the calculation method
Journal of Highway and Transportation Research and Development.2008.
Journal of Chongqing Technology and Business University: Natural Science Edition. 2010.27(4).385~389.
Journal OF Beijing University of Technology, 2005.1, 31(1).36~41.

(3) Inner tube is enclosed in the component inside, the equivalent of the steel bone in the steel reinforced concrete member, increased carrying capacity of members，while improved the shear capacity and seismic performance. 2.2 The main features 1 mechanical characteristics Under the action of the inner and outer steel tube tight hoop or constraints of concrete ,and the concrete support or stable the internal and external steel tube，these three member form the composite member which bearing capacity is far greater than their superposition of three，increase the axial stiffness of the component; In the ferrule effect of outer and inner steel tube to concrete, make the concrete change originally belongs to brittle materials into plastic and toughness are very good materials; Concrete filled double skin steel tubes member section to carry out, increased its flexural stiffness and ductility , and its hysteretic performance is better than concrete filled steel tube, with good seismic capacity
Acknowledgement It is a project supported by National Science Foundation (51308347) .
Journal of Building Structure, 27(2), 2006: 64-74
Journal of Structural Engineering, 1995, 121(12):1 806-1 814
Journal of Civil Engineering, 36(2), 2003:33-40

Many researches show that many properties of the materials were related with the fractal dimension of the fracture [2,3,4,5].
J integral parameter is used to describe the mechanical properties of strain fatigue materials.
References [1] Yan Y, Liu A.Z, Zhou D.X: Journal of Hefei University of Technology.
[2] Tang W, Zhu H, Wang Y: Journal of Iron and Steel Research.
[5] Zhang K.K, Yang Y.L, Ni F: Journal of Xian Jiaotong University.

Material Parameters AC-20C SBS modified asphalt is employed, and the main technical parameters are listed in table.1, according to the standard JTG F40-2004[2] and JTJ052-2000[3].
Asphalt concrete, as viscoelastic material, its creep deformation is varied by time and temperature under constant load.
Journal of Highway and Transportation Research and Development.Vol.23(12),(2006), P10-13 [6] Jin’an Shen: Road Performance of Asphalt and Asphalt Mixture.
Journal of Southeast University (Natural Science Edition).
Journal of Wuhan University of Technology.

These studies have shown that the superposition of mode III loading results in a drastic reduction in the fracture toughness in some materials, whereas it has little effect or even results in an increase in fracture toughness in other materials.
[5] Manoharan, M. and Lewadowski, J.J., Combined mode I-mode III fracture toughness of a particulate reinforced metal matrix composites, Journal of Composite Materials, 25, pp.831-841, (1991)
[8] Srinivas M., Kamat S.V., Rama Rao P., Material Science Technology, Vol.20, pp. 235-242, (2004)
[11] Morris and Cook, “Indentation Fracture Toughness Measurements of Low Dielectric Constant Materials”, Mat.
E.9.3.1-9.3.6, (2003) [12] Yi-Lan Kang, Zhi-feng Zang, Huai-Wen Wang and Qimg-Hua Qin, “Experimental Investigations of the Effect of Thickness on Fracture Toughness of Metallic Foils”, Materials Science and Engineering A, Vol.394, pp. 312-319, (2005).

Experimental Metallic magnesium, aluminum, zinc, and Sn were used as raw materials.
All the raw materials was baked at 200℃ before melting.
Materials Science and Engineering A, Vol. 302(2001), p. 37 [2] A.A.
Materials Science Forum, Vol. 419-422(2003), p. 57 [3] J.C.
Journal of the Chinese Rare Earth Society, Vol. 25(2007), p. 329 (in Chinese)

In computational procedures, variations of material properties in the considered domain are modelled by adopting proper material parameters at Gauss points in integrations.
We can approximate the generalized displacement vector u at a point (x, y) as Fig. 1 A rectangular plate x h a b y ,z w yθ xθ This work is supported by the Natural Science Foundation of China (No. 10802029) and Scientific Research Fund of Hunan Provincial Education Department of China (09C880).
Modal analysis of moderately thick plates by element-free method, China Civil Engineering Journal 2006; 39(10): 29-33
Free and forced vibrations of thick rectangular plates by using higher-order shear and normal deformable plate theory and meshless Petrov-Galerkin (MLPG) method, Computer Modeling in Engineering and Sciences 2003;4:519-534
Journal of Mechanical Strength 2002; 24(1):70-72

Maki and Yoshida [1] studied the deformation of the wire when the profiled line was drawn, and the finite element method and the experimental analysis were used to compare the differences between the same section and differently materials.
Materials and Methods The materials selected in this paper steel SAE9254, the material properties are obtained by tensile test, the plastic flow stress curve is shown in Figure 1, the material properties are shown in Table 1.
Table 1 The material properties.
Todinov, “Maximum Principal Tensile Stress and Fatigue Crack Origin for Compression Springs”, International Journal of Mechanical Sciences, Vol. 41, No. 3, 1999, pp. 357-370
Ichikawa, “Shape Optimization of the Wire Cross Section of Helical Spring”, JSME International Journal, Series C, Vol. 36, No. 4, 1993, pp. 507-514

At the same time surgical and therapeutic treatment methods are under constant development that sets new problems and challenges for the materials science [2].
Materials and Experimental Techniques Synthesis.
Petersburg Polytechnic University Journal.
Petersburg Polytechnic University Journal.
Petersburg Polytechnic University Journal.

Srinivasan:Journal of Engineering for Gas Turbines and Power, Vol.119(1997)No.4, pp.742-775
LI:Journal of Aerospace Power,Vol.24(2009)No.9, pp. 2040-2045 [4] J.J.
LI:Journal of Aerospace Power,Vol.24(2009)No.4,pp.788-792
Pierre: Journal of Propulsion and Power,Vol.22(2006)No.2,pp.384-396
[6] China Aeronautical Materials Handbook Editorial Committee:China Aeronautical Materials Handbook(China Standards Press,China,2002) (In Chinese)