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Materials and methods Strains and media.
Acknowledgements The authors are grateful to National Science Foundation of China by the grant 31170537, and Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD).
[2] GP Smith: Science, Vol. 228 (1985), p. 1315-1317
Wang: Journal of Molecular Catalysis B: Enzymatic Vol.67 (2010), p. 45-51.

Specific example According to a typical high-speed train, the material of brake discs is carbon steel.
After definition of material, the quality and rotational inertia can be measured.
This research was supported by National Natural Science Foundation of China (Grant No. 61004077).
Setoguchi: Progress in Aerospace Sciences Vol.38 (2002), p. 469-514 [2] S.B.
Li: Journal of the China Railway Society Vol.34 (2012), p. 18-23

References [1] Xie Yan, Li Mu, “Appliance on Evaluation of Type Selection for Agricultural Machinery Based on Grey Relational Analysis Method, ” 2011 International Conference on Recent Trends in Materials and Mechanical Engineering, Volumes 55 – 57,pp.988-991(2011)
[4] Deng Ju-long, Gray System Theory Course,[M], Huazhong University of Science and Technology Publishing House,55-62(1990)
“The grey analysis of air quality in shenzhen city,” The Journal of Grey System, Papers 21(3), 14-17(1995)
HeNan Science, Papers 26(12),1539-1541(2008)

Acknowledgements The research is supported by the Natural Science Research Project of Guangdong Province Education Office of China (No.
Li: Chinese Journal of Mechanical Engineering, Vol.39 (2003) No.1, pp.111
Chen: Materials Science Forum, Vols.471-472 (2004), pp.92

Table 1 Details of the tested specimens Number Specimen label Sectional dimension Do (mm) Dimension of inner steel tube Di×t (mm) Outer Concrete fcu(MPa) Core Concrete fcu(MPa) Stell tube ratio as Reinforcement ratio rb(%) Nue (kN) 1 crc1-1 234 75×2.60 61.7 74.2 0.10 1.04 2608 2 crc1-2 234 75×2.60 61.7 74.2 0.10 1.04 2497 3 crc2-1 234 102×2.94 61.7 74.2 0.19 1.14 2701 4 crc2-2 234 102×2.94 61.7 74.2 0.19 1.14 2579 5 crc3-1 234 121×2.97 61.7 74.2 0.27 1.27 2956 6 crc3-2 234 121×2.97 61.7 74.2 0.27 1.27 2770 7 crc4-1 234 102×2.94 61.7 61.7 0.19 1.14 2360 8 crc4-2 234 102×2.94 61.7 61.7 0.19 1.14 2254 9 crc5-1 234 102×2.94 74.2 74.2 0.19 1.14 3133 10 crc5-2 234 102×2.94 74.2 74.2 0.19 1.14 2856 Material properties The measured properties of the steel obtained from the coupon tests are given in Table 2.
Table 2 Material properties of steel Steel type fy(MPa ) fu(MPa) Es(N/mm2) μs Steel tube (○-75×2.60) 325 410 2.21×105 0.302 Steel tube (○-102×2.94) 320 445 2.12×105 0.280 Steel tube (○-121×2.97) 318 404 2.05×105 0.288 Ф7.9 Reinforced bar 287 449 2.17×105 - Ф6.4 Reinforced bar 290 462 2.20×105 - Two different self-consolidating concretes (SCC), i.e. concrete I and Concrete II, were prepared for both outer concrete and core concrete to investigate the influence of concrete strength.
Acknowledgements The study of this paper is supported by the China Postdoctoral Science Foundation (20090460362).
Building Science Research of Sichuan, Vol. 29 (2003), p. 11-16 [2] Wang LJ, Chi YH.
Journal of Constructional Steel Research, Vol. 65 (2009), p. 1607-1616 [4] GB50010-2001.

But the need of light-weighting pushes towards the adoption of materials with optimal strenght-to-weight ratio, like Al alloys.
Introduction Aluminium (Al) and its alloys are a well-established class of metallic materials, within the big group of the light alloys, able to combine excellent material properties with a limited density (about one third of the steel one).
G., and Vaidya, U., 2019, “Materials for Automotive Lightweighting,” Annu.
[2] DIN EN 45545-2, 2016, “Railway Applications - Fire Protection on Railway Vehicles - Part 2: Requirements for Fire Behaviour of Materials and Components
The Journal of Strain Analysis for Engineering Design: 03093247211027061.

Study on Three-level Matching Model of Product Configuration Oriented to Mass Customization GE Jiang-hua 1,2,a, XU Yong-lin2,b , HUANG Yong-tao2,c and GAO Guo-an 1,d 1Mechanical Electron Engineering College, Harbin Institute of Technology, Harbin 150001, China 2 Contemporary Manufacturing Engineering and Cutter Exploitation Laboratory, Harbin University of Science and Technology, Harbin 150080, China a gejianghua@sina.com, bxyl_lk@hotmail.com, crabbihuang@126.com, dgaoguoan@sina.com Keywords: Mass customization, Product configuration, Three-level matching model, Correlation matrix, Correlation matching Abstract: This paper proposed configuration three-level matching model based on modular product structure in order to solve the product configuration design problem in mass customization (MC).
LI, et al: Chinese Journal of Mechanical Engineering, Vol. 40 (2004) No.1, pp.109-113
YI, et al: Journal of Zhejiang University: Engineering Science, Vol. 40 (2006) No.6, pp.466-470
LI, et al: Journal of Harbin Institute of Technology, Vol. 35 (2003) No.12, pp.1461-1464
WANG, et al: Key Engineering Materials, Vol. 392-394 (2009), pp. 661-666

Experimental Materials.
References [1] Huiren Hu, Yangbing Wen, Shulan Shi: China pulp & paper (In Chinese) Vol.30 (2011), p.30 [2] Deping Sun, Jianfeng Xu, Liangcai Liu: China pulp & paper industry (In Chinese) Vol. 31 (2010), p.45 [3] Jiehui Li, Huiren Hu, Wen Liu: China pulp & paper(In Chinese) Vol.27 (2008), p.35 [4] Xinsheng Li, Xinlong Yan, Guangqing Zhang: Paper chemicals (In Chinese) Vol.20(2008)P.41 [5] Shunhui Chen: Journal of Henan Science and Technology (In Chinese) Vol.36(2011)P.65 [6] Anquan Hu, Heng Xu, Shufang Ji: Silicon Valley (In Chinese) Vol.9 (2010), P.139

T.A.Everit et al. deduced the computation of the damping coefficient which can be used to the rod formed with different materials, and obtained the real damping coefficient by means of iterative of the water power and pump power[2].
Acknowledgements The authors would like to acknowledge the support provided by National Natural Science Foundation of China (Grant No.50905151).
Chinese Journal of Mechanical Engineering, Vol.43, (2007), No.12, p.212-215 [6] L.

Olson, A fracture mechanics methodology assessment for fretting fatigue, International Journal of Fatigue (2003); 25; 1069-1077
Shepard, Life prediction of fretting fatigue with advanced surface treatments, Materials Science and Engineering A (2007); 468-470; 15-22