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The subgrade materials are elastic-plastic, which obey Mohr-Coulomb yield criterion and will not strengthen under pressure.
When the traffic load exceeds the highway’s design load, flexural-tensile stress in the pavement materials may become quite large and lead to pavement’s fatigue rupture.
Journal of Nanjing University of Technology (Natural Science Edition), 2010, 17-18
Laboratory Evaluation of Rutting in Base Course Materials, J.
China Journal of Highway and Transport, 2004, 12-13

Conclusions Steel and plastic are two complementary materials, the high strength and high rigidity of the steel, corrosion resistance and light weight of plastic.
It develops the advantages of two kinds of materials, and avoids its disadvantages.
It is a kind of energy-saving and environmental protection building materials.
Reference [1] National Standards CJ/T 225-2011 Metal reinforced polyethylene (PE) spiral corrugated pip for underground sewer 2011.4 in Chinese [2] Jinhua wu Product standards and process control for metal reinforced polyethylene (PE) spiral corrugated pip for underground sewer new building materials (China Journal) 2006．12 in Chinese
Characteristics and production technology of Steel Reinforced Corrugated Plastic Pipe Buried Sewer, Chemical building materials (China Journal) No.6 2004 [4] Jianyu Zhu,Zhifen Liu etc High density polyethylene winding structure wall pipe and steel enhancement Polyethylene spiral corrugated pipe structure calculation Special Structure(China Journal) 65-67 No.3 2007

However, when the cutting speed exceeds a critical value, the cutting temperature increase further and materials softens heavily, which make the resistance of flowing chip falling down.
International Journal of Refractory Metals and Hard Materials.
Journal of Materials Processing Technology.
Guo, David W.Yen., Journal of Materials Processing Technology.
Metallurgical and Materials Transactions A Vol. 40 (2010), p.3245-3257 [8] J.Gradišek, M.Kalveram, K.Weinert, International Journal of machine Tools ＆ manufacture.

As one of common connections, the riveting process is easy to perform and especially suitable for fastening parts with different materials.
International Journal of Fatigue．2003（25）, 1013-1026
Journal of Tribology .
Journal of Materials Processing Technology.180 (2006) 201-209 [6] L.
Drazetic, Full scale experimental characterization for riveted join design, Aerospace Science Technology. 6 (2002) 333-342.

Effect of Nano-Alumina (Al2O3) Loading on the Thermo-Mechanical Properties of Poly(Lactic Acid) for Fused Deposition Modeling 3D Printing Applications TOLENTINO Marvin S. 1,3,a, BASILIA Blessie A.1,2,b and DE YRO Persia Ada N.1,2,c* 1Advanced Manufacturing Center – Materials Development Laboratory, Materials Science Division, Industrial Technology Development Institute, Department of Science and Technology, DOST Cpd., Gen.
Materials and Methodology Raw Materials Preparation.
Also, the authors are grateful to the Advanced Device and Materials Testing Laboratory (ADMATEL), Materials Science Division (MSD), and Standards and Testing Division (STD) of the Industrial Technology Development Institute (ITDI) for offering their facilities in the conduct of various characterization techniques in this study.
International Journal of Mechanical Sciences 2017; 120:225–36. https://doi.org/10.1016/j.ijmecsci.2016.11.032
Fused filament fabrication of polymer materials: A review of interlayer bond.

Materials Drugs and Reagents.
Pollen contains a wealth of functional materials, can enhance the capabilities of hypoxia and ischemia of myocardial.
Dong, and B.Q.Zhao: Natural Science of Hunan Normal University, Vol. 35 (2012) No.50, p.78.
Shi, H.An, H.D.Ma, M.H.Zhao, and LBai: Journal of Pharmaceutical Journal of Chinese People's Liberation Army, Vol. 28(2012) No.5, p.412.
Levy, and A .Churg: Thorax Journal, Vol. 60 (2005) No.7, p.605

Numerical simulation of eccentric extrusion form bending pipe parts Jishun SONG1,2,a, Yuntao LI1,3,b, Deheng DU1, Xu MA1,3, Kang YIN1 1School of Materials Science & Engineering, Tianjin University of Technology, Tianjin 300384, China 2Key Laboratory of Display Materials & Photoelectric Devices (Tianjin University of Technology), Ministry of Education, Tianjin 300384, China 3Tianjin Key Lab for Photoelectric Materials & Devices, Tianjin 300384, China aJishun SONG E-mail: lgjs@163.com(Correspondence Author) bYuntao LI, E-mail: transramble@163.com(Correspondence Author) .
Using multi-billet extrusion (MBE), a number of different cross-sections in different sizes blank hole extrusion die, in the same or a different punch extrusion speed, the flow of materials, several convergence in the mold exit, welding, forming.
As a result of a single overall blank, the forming process does not exist defect in the soldering bridge mold, forming curved pipe can withstand a higher intensity of work; The role of eccentric squeeze through the forming process to achieve the numerical simulation, analysis obtained the following results: （1）Material flow model; （2）Stress distribution （3）Velocity field distribution （4）Load changes of extrusion process Establish finite element model Suppose: （1）Material in the mold within the isothermal flow ,materials friction and friction heat between materials and mold is negligible; （2）Non-stable material flow, and flow field distribution is related with time; （3）Incompressible plastic materials; （4）Inertia force, gravity, and other volume force is negligible.
Acknowledge: This work was supported by the National Natural Science Foundation of China, No.50975205, and Tianjin Key Subject for Materials Physics and Chemistry.
JOURNAL OF MATERIALS SCIENCE.Vol. 40 (2005), p.2007 [4] Chen, F.

The experiments including to the press fit and torque strength of lobe/tube joining were carried out.The results show that the torque strength of the cam lobe/shaft joining can availably increase by matching cam and tube materials, choosing appropriate knurling form, enlarging magnitude of interference and extending knurling width.
Introduce Assembled camshaft, where shaft tube and cam lobe are separately produced and then assembled, has offered a range of remarkable advantages in cost reduction, weight saving, optimum combination of cam/ shaft materials, design and manufacture flexibility and performance improvement over conventional camshafts made from one material [1,2].
Material.
The optimum combination of cam/shaft materials has an important influence on joining strength.
References [1] Kou S, Yang S, Zhao Y, et al: China Mechanical Engineering, Vol. 15 (2004), p. 474 [2] Yang S, Zhang C, Kou S, et al: Neiranji gongcheng, Vol. 25 (2004), p. 32 [3] Qiao J, Kou S, Yang S, et al: VEHICLE ENGINE, 1 (2007), p. 1 [4] Yuan.S, Liu.G, Huang.R, et al: Journal of Materials Processing Technology, Vol. 151 (2004), p. 203 [5] Harald M, Andreas K: Automotive Engineering, Vol. 105 (1997), p. 1 [6] M.Hagedorn, K.Weinert: Journal of Materials Processing Technology, Vol. 153-154 (2004), p. 329 [7] Pierre B, Salvator N, Juan R.L.T, et al: SAE Technical Paper Series No.2001010397 (2001), p. 1 [8] Kou S, Qiao J, Yang S, et al: Journal of Jilin University(Engineering and Technology Edition), Vol.37 (2005), p. 1106 [9] Wang Q: CHINA MECHANICAL DESIGN CANON (Jiang Xi Science and Technology Publication, China 2002)

Experimental works Materials selection In order to fabricate metal matrix composites (MMCs), aluminium alloy6061 was used as matrix and nano-SiC and nano-B4C was used as reinforcing materials.
Journal of Thermoplastic Composite Materials(2013)1-19
Materials and Manufacturing Processes 25(2010) 467-475
Advanced Materials Research 984-985(2014) 384-389
Procedia Materials Science 6(2014) 1805 – 1814

As a special function material, VO2 undergoes a phase transition approximately at 68℃ which is near room-temperature.
In this paper, W and Mo co-doped VO2(M) nanopowders were synthesized by thermal decomposition via two-step method using oxalic acid, V2O5, (NH4)6W7O24·6H2O and (NH4)6Mo7O24·4H2O as raw materials.
Jing: Journal of Gansu Sciences Vol. 18(2006), p. 38.
Chen: The Chinese Journal of Nonferrous Metals Vol. 14(2004), p. 2131.
Dai: Journal of Materials Science Vol. 39(2004), p. 489.