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The technology of composite materials for the aerospace industry has been developed rapidly in recent years.
It is of considerable importance for using composite materials as aerospace structures materials in order to reduce the weight of aerospace structures and improve performance.
Advanced composite materials have been widely applied in the aerospace field. [1,2] Cross beam structures of launch vehicle accelerating stage have traditionally adopt metal materials.
Due to the superior performance of ACM, the design for cross beam structures using advanced composite materials is proposed in this paper.
[8] Chen xiangbao,Handbook of Polymer Matrix Composites, Chemical Industry Press,,2004.05 [9] HAN Xu, LEI Lei, YUAN Wei, WANG Tao, WANG Zhi-jin: Optimization of the Composit Hat-stiffened Panel Based on Equivalent Model, Journal of Materials Engineering, 2009-S2-041.

ACI Materials Journal Vol. 97(2000), p.168 [3] H.W.
Journal of Hazardous Materials.
Society of Materials Science vol.48(1999) p.882 [9] P.
Journal of Materials in Civil Engineering Vol. 15(2003), p.134 [10] V.
Construction and Building Materials Vol. 17 (2003), p.147

Study on the evolution of surface morphology of hetero-epitaxy growth of ZnO thin film Jingzhong Xiao1, 2, a, José António Carvalho Paixão1, and Quanjie Jia3 1Department of Physics, University of Coimbra, Rua Larga, Coimbra 3004-516, Portugal 2International Centre for Materials Physics, Chinese Academy of Sciences, Shenyang 110016, China 3Beijing Synchrotron Radiation Laboratory, Institute of High Energy, Chinese Academy of Sciences, Beijing 100039, P.R.
Service: Science Vol. 276 (1997), p. 895
Tsurumi: Journal of Applied Physics Vol. 93 (2003), p. 1961
Yu: Journal of the European Ceramic Society Vol. 24 (2004), p. 1015
Waag: Journal of Applied Physics Vol. 96 ( 2004), p. 289

Materials and methods Rate equations for the Er3+-doped YLF system.
Recently, several survey studies were conducted regarding SA technique applications in Engineering and Materials Sciences, mainly due to the fact that this technique is highly robust and efficient for most optimization problems [12,13,14].
Science, vol. 220, n. 4598, pp. 671-680, 1983
Synchroton radiation in Natural Science, Vol. 9.
Optimization of Electric Discharge machining using Simulated Annealing, Journal of Material Processing Technology, v. 209, p.4471-4475, 2009

Material research bulletin 49(2014) 114-118
Journal of Colloid and Interface Science. 554 (2019) 520-530
Advanced Material Science Eng. 291230 (2015) 1-7
Journal of Material Science. 54 (2020) 230-239
Journal of Luminescence. 149 (2014) 150-154.

Materials Science & Engineering.
Materials Science & Engineering.
Materials Science & Engineering.
Materials Science & Engineering.
Journal of Materials Processing Technology, v.86, p. 1-16, 1999

(ii) Factors that influence the microstructure of gear material.
S=A+BlgN (4) Where S is the cyclic stress, N is cycle index of stress, and A and B are parameters related to materials, stress ratio, loading conditions, etc.
ZR2010EM013), the Shandong Province Science and Technology Development Projects (Grant No. 2010GGX10408), the Innovation Foundation for Graduate Students of Shandong University of Science & Technology (Grant No.
Zu: Bending Fatigue Strength of Gear Under Random Loads, Journal of Central-south Institute of Technology Vol. 21(2007), p. 49-51, in Chinese
Chen: Fatigue and Fracture, Huazhong University of Science & Technology Press, Wuhan (2002),in Chinese

It was found that the stress exponent is n = 0, which means the creep behavior in this region is independent on applied stress but some physical properties of materials.
Introduction Deformation behavior in materials strongly depends on stresses.
Result (2) indicates the creep behaviour in this region is independent on the external applied stress but dependent on some physical properties of materials.
The is named “intrinsic deformation limit” because the may be decided by surface properties of materials and independent on experimental conditions.
Mareek, Measurement of very low creep strains: A review [J], Journal of Testing and Evaluation. 37 (2009) 53-58.

Sun, Corrosion behaviours of high Cr–Ni cast steels in the HCl solution, Journal of Alloys and Compounds 498 (2010) 143–147 [3] R.K.Melekhov, O.I.Radkevych, H.V.Chumalo, and R.M.Yurkvych, Corrosion cracking of cast Cr-Ni-Mo ferritic- ausztenitic steels, Materials Science, Vol. 41, No. 5, (2005) [4] S.
Kimb, High temperature fatigue behaviors of a cast ferritic stainless steel, Materials Science and Engineering A 534 (2012) 7– 12 [5] K.H.
Materials Science and Engineering R 65, (2009) 39-104
Metallurgical and Materials Transactions, Volume 31A. (2000) 3155-3166 [8] H.P.
Qin, The effect of precipitation on microstructure, mechanic properties and corrosion resistance of two UNS S44660 ferritic stainless steels, Materials Science and Engineering A 534 (2012) 436– 445

Materials and Methods As the study materials used plates made of technically pure aluminum Al and steel St3.
Kuz'min, Energy balance during explosive welding, Journal of Materials Processing Technology. 222 (2015) 356-364
Findik, Recent developments in explosive welding, Materials and Design. 32 (2011) 1081-1093
Miu, Explosive welding of aluminum-steel of dovetail groove, Hanneng Cailiao, Chinese Journal of Energetic Materials. 24 (2016) 188-193
Kuz'min, Explosive Welding of Metal Layered Composite Materials, E.O.