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In the process of using work-pieces, the destruction accidents occur mostly due to the influence of residual stress, besides the material and structural strength of the work-piece[3].
These results study the effect of annealing process on mechanical properties of welded joint. 2 Test Materials and Procedures 2.1 Test materials The test material is Q355NH weathering steel (12 mm thickness), whose chemical composition and mechanical properties are listed in table 1 and 2 respectively.
Acknowledgments This work was financially supported by Colleges and universities in Hebei province science and technology research youth fund (Hebei Province Department of Education Fund) No.QN2018168.
Chinese Journal of Mechanical Engineering, 2007, 43(2): 234-237
Materials Science& Engineering A, 2013, 561(8): 136-144.

For these reasons, materials science and more particularly solidification of binary alloys have been prominent topics of research in microgravity fields, since the early stages.
Langer, Dynamics of dendritic pattern formation, Materials Science and Engineering, 65 (1984) 37-44
Reinhart, et al., Investigation of Columnar-Equiaxed Transition and Equiaxed growth of Aluminium Based Alloys by X-Ray Radiography, Materials Science and Engineering A, 413-414 (2005) 384-388
Reinhart, et al., In-Situ and real-time analysis of the formation of strains and microstructure defects during solidification of Al-3.5 wt pct Ni alloys, Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science, 39A (2008) 865-874
Davidson, Magnetohydrodynamics in materials processing, Annual Review of Fluid Mechanics, 31 (1999) 273-300

Introduction To date, carbon-filled polymer composites are the most used materials for the manufacture of tribological assembly [1].
From the analysis of modern antifriction materials market, it has been found out that one of the main ones is caprolon (PA 6).
Alshennawy, Friction and wear of polymer composites filled by nano-particles: a review, World Journal of Nano Science and Engineering, 2 (2012), 32-39
Geier, Micro-mechanical modelling of Young’s modulus of semi-crystalline polyamide 6 (PA 6) and elastomer particle-modified-PA 6, Computational Materials Science, 50 (2011), 1315–1319
Kuzmin, M.A.Okin, E.A.Kotina, Calculation of thermophysical characteristics of thermoplastic composites with vegetable fillers// Materials Science, 10 (2017), P. 25-29.

Except being used as drug carrier, it is also an adsorption material of great exploitation potential.
Experimental Materials and Methods Soluble starch was purchased from Junle Chemical Works (Peng-zhou, Si-Chuan Province, China)with molecular weight range between 32000 and 160000 g/mol.
Alhassan, Biomedical and Environmental Sciences.
Vol.22(2007), p. 70 [5] WANG Xian, XU Lu-rong, CHEN Li-dan etc, Journal of Oceanography In Taiwan Strait[J], 2003, 22(1): 120~124
Ion Exchange and Adsorption Resin, Shanghai Science and Technology Press,1995

· Entry of materials: procedures for arrival and unloading of vehicles; quality control procedures; pre-receiving; documentation
· Exit of materials: total quantity to be shipped; departure points; delivery dates; documentation.
Keeney.Management Science (2008) [2] A.
Science Technology and Engineering (2009) [6] A.
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Journal of Micromechanics and Microengineering, 2002. 12: p. 759
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Senturia, M-TEST: A test chip for MEMS material property measurement using electrostatically actuated test structures.
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[10] Zhengjia, wavelet finite element theory and its engineering applications. 2006, Science Press

Zhang: China Journal of Highway and Transport, Vol. 16(2003) No.4, pp.115-117.
Hao: Journal of vibration and shock, Vol 24(2005) No.3, pp.111-113.
Jin: Journal of Sound and Vibration, Vol. 208(1997) No.3, pp. 427-439. ]: [1] The cantilevered pipe is considered to be of constant inner diameter and section properties, inextensible, homogeneous and isotropic material, with mass per unit length and length
Son: International Journal of Mechanical Sciences (2007), pp.878-887. ].The potential energy of the cantilevered pipe is (5) Using Eq. 3 for the velocity vector of the fluid,the kinetic energy of the fluid is (6) The potential energy of the fluid is (7) According to the literature[[5] C.I.

Choice of units and definition of material properties.
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Ruiz, Fixed grid finite element analysis for 3D structural problems, International Journal of Computational Methods 2 (2005).

Acknowledgement The paper is supported by the National Science and Technology Support Project (No.2011BAF12B00-2).
Vibration Testing and Operational Modal Analysis of Automated Warehouse Lane Stacker[J].Chinese Journal of Mechanical Engineering , 2004,15(4):287-289
Journal of Vibration Measurement & Diagnosis, 2010, (2): 30:198-200
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Journal of Vibration and Shock,2009,28(1):64-66.

Establishing and Solving of the Finite Element Model Material Parameters The finite model is created by concrete surface layer and cement crushed stone base, and the structural layer under stabilized macadam base is simplified with Winkler model.
Acknowledgements This work is financially supported by the National Natural Science Foundation (51178456).
Liu, Dynamic response analysis of cement concrete pavement under different vehicle speed, Journal of Hebei University of Technology, 3 (2010) 63-66
Yuan, 3D finite element analysis of the load transfer efficiency of joints of airport rigid pavement, China Civil Engineering Journal, 2 (2009) 22-25
Zhang, A simple way of estimating load-carrying capacity of airport pavement, Journal of Northwestern Polytechnical University, 1 (2004) 19-22.