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The paper presents the analytical method of determining the S-N curve based on the static material properties.
The static properties of the material were as follows: Rm – 1172 MPa, Re – 1095 MPa, hardness 30 HRC.
[3] Park JH, Song JH., Detailed evaluation of methods for estimation of fatigue properties, International Journal of Fatigue, Vol. 17 No 5, (1995) 365–373
[4] Pejkowski Ł., Skibicki D., Analysis of accelerated methods for determination of fatigue curves, Journal of Polish Cimac, Vol. 6 No. 3, (2011) 199-214
[5] PN-H-04326:1976, Test of metal fatigue – Bending tests [6] PN-H 04325:1976 Test of metal fatigue - Basic terms and general guidelines for preparing of samples and carry out tests [7] Strzelecki P., Sempruch J., Experimental Verification of the Analytical Method for Estimated S-N Curve in Limited Fatigue Life, Materials Science Forum, Vol. 726, (2012) 11-16

Numerical Simulation and Analysis on Bending Forming of Hull Plate Linlin LUO1，Dasen BI1,3,a，Yan BI1，Liang CHU1,2,b Xu MA1,3, Jianping LI4, Hongshuang DI4 1School of Materials Science and 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 4The state key lab of rolling technology and automation of northeast university shenyang 110004, China atjbds@sina.com（correspondence author）, bchuliangszhm@163.com（correspondence author） Key words：hull plate; bending process; FEM Abstract.
Although the maximum of the Von Mises stress is located in the material between the die, the distribution of Von Mises stress is non-uniform, the material located in the center part of the plate has smaller stress than the rest of that between the die.The main reason is that the material in the center part of the plate is only subjected to the force in the direction that the punch will move.
Because of the role of bending moment, the maximum stress occurred at the material between punch and die.
Acknowledgement This work was supported by open found of the state key lab of rolling technology and automation of northeast university, and Tianjin scientific and technical support project under Grant No. 09ZCKFGX02700, and Tianjin Key Subject for Materials Physics and Chemistry.
Chouhan: Journal of Materials Processing Technology Vol.186（2007）,p.120-124 [4] V.Miguel,J.Coello,A.Calatayud,M.C.Manjabacas,et al.: Journal of Materials Processing Technology Vol.209（2009）, p.1588-1596 [5] Y.H.Moon,D.W.Kim,C.J.Van Tyne: International Journal of Mechanical Sciences Vol.50（2008）, p.666-675 [6] Sai SudhaRamesh,C.M.Wang,J.N.Reddy,K.K.Ang: Engineering Structures Vol.30（2008）, p.2687-2706 [7] Zhang Dongjuan,Cui Zhenshan,Ruan Xueyu,Li Yuqiang: Computational Materials Science Vol.38（2007）,p. 707-715 [8] Kou-Long Lee,Wen-Fung Pan,Ju-Nan Kuo: International Journal of and Structures 38（2001）, p.2401-2413 [9] M.Goodarzi,T.Kuboki,M.Murata: Journal of Materials Processing Technology Vol.162-163（2005）, p.492-497 [10] L.Rafael Sanchez: International Journal of Mechanical Sciences Vol.42（2000）,p.705-728 [11] G.Ferran,M.A.de Almeida: Journal of Materials Processing Technology Vol.115（2001）, p.114-117

Advanced Materials Research.
Journal of Northeastern university(Natural Science), 2004 25(1)
Science& Technology Progress and Policy, 2009 26(21)
Journal of Audit& Economics, 2009 24(2)
Design of a Modular Robot Platform[J].Journal of South China University of Technology(Natural Science Edition),2011 49(4)

Some of these processes are based on adsorptive properties of materials that may successfully immobilize heavy metals.
Amongst the different technologies available for the treatment of wastewater contaminated with heavy metals, bioremediation has proved to be cost-effective and eco-friendly, which involves the use of biological materials for the treatment[3, 4].
Materials and methods The sample of phosphogypsum were collected from Yunnan Luliang Fu Qiang Building Materials Co., Ltd.
Long, Adsorption of chromium (VI) by ethylenediamine-modified cross-linked magnetic chitosan resin: Isotherms, kinetics and thermodynamics, Journal of Hazardous Materials, 185 (2011) 306-314
Campo Dall’ Orto, Adsorption of Cd(II) and Pb(II) onto a one step-synthesized polyampholyte: Kinetics and equilibrium studies, Journal of Hazardous Materials, 217-218 (2012) 374-381.

Experimental Program Materials.
Long: Journal of Building Materials, Vol. 4(2001), No. 3, p. 280 (in Chinese)
Shi: Journal of Materials Science and Engineering,Vol.23(2005),No.6,p. 867
Zhu: Applied Mechanics and Materials, Vols.204-208(2012) , p. 3989
Hu: Advanced Materials Research, Vols. 255-260 (2011), p. 452.

Workpiece Materials.
Swain: An Experimental Investigation of Hot-Machining to Predict Tool Life, Journal of Materials Processing Technology (2007)
Abdelgadir: The Effect of Preheating of Work Material on Chatter During End Milling of Medium Carbon Steel Performed on a Vertical Machining Center (VMC), ASME Journal of Manufacturing Science and Engineering, 674-680 (2003)
Elbestawi: Surface Integrity of Die Material in High Speed Hard Machining, Part 2: Microhardness Variations and Ressidual Stresses, Transactions of The ASME, Journal of Manufacturing Science and Engineering, 122: 632–641 (2000)
Smith: Principles of Materials Science and Engineering, New York: McGraw-Hill, Inc., 3rd edition, (1996).

Research on Green Hotels based on Green Materials Su Bo University of Science and Technology Liaoning, 114051 Keywords: green hotel, environmental protection, energy saving, green marketing Abstract.
The hotel, a place for high consumption, uses a lot of natural resources and discharges a large amount of waste materials, which leads to the deterioration of the surrounding environment and the depletion of natural resources.
Buildings must use green building materials --- adhesive decorative materials and materials containing chemicals.
Green Hotel [M ].SHENYANG: Liaoning Science and Technology Press, 2001 [3] Li Yuhui.
Journal of Jilin business college, 2004 [6] Liu Li.

Beijing Institute of Aeronautical Materials, Beijing 100095, China 2.
School of Materials Science and Engineering, Tianjin University,Tianjin 300072,China a. xyubiam@sina.com b. zheng_ji@tju.edu.cn c.slli@tju.edu.cn Keywords: Sol-gel process; ZnO2; Al3+-doped; Electric conductivity Abstract.
And the electric resirtitivity of Al3+-doped ZnO materials was 104 times higher than that of pure ZnO materials.
Journal of Materials Processing Technology, 2007, 189(1-3): 379-383 [8] Cox, S.
Journal of the American Ceramic Society,2010, 93(10): 3088-3091

Experimental Materials.
TG can be used to study the thermal stability of polymer materials under certain atmospheric conditions.
Jia: Study on the interfacial micro-voids of poly(vinylidene difl{TTP}-1278 uoride)/polyurethane blend membrane, Journal of Material Science, 42(15): 6234-6239 (2007)
Doyle: Kinetic analysis of thermogravimetric data, Journal of Applied Polymer Science, 5(15): 285-292 (1961)
Blunt: Predictive network modeling of single-phase non-Newtonian flow in porous media, Journal of Colloid and Interface Science, 264(1): 256-265 (2003).

Yodo: A Review on Filament Materials for Fused Filament Fabrication, Journal of Manufacturing and Materials Processing Vol. 5(3), pp. 69 [15] A.
Milella: Composite materials: A Vision for the Future 1st Ed., Springer Science & Business Media (2011), p. 218 [17] F.
Schwartz: Composite materials handbook Ed.
Akessa: Strength analysis of 3D printed carbon fibre reinforced thermoplastic using experimental and numerical methods, IOP Conference Series: Materials Science and Engineering (2019) 700 012024 [22] M.
Fidan: Tensile Performance of 3D-Printed Continuous Fiber-Reinforced Nylon Composites, Journal of Manufacturing and Materials Processing Vol. 5 (3) (2021), p. 68 [23] Z.