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The optimization of consumer products through the use of numerical simulations has become a key factor to a continuously increasing requirement for time and cost efficiency, for quality improvement and materials saving, in many manufacturing areas such as automotive, aerospace, building, packaging and electronic industries.
To meet these requirements, a call for new lightweight concepts and crash structures was raised, using lighter and/or stronger materials.
Topology optimization can be formulated as a material distribution problem that optimally distributes solid and void material over a fixed design domain [6].
[4] Kazuhiro Saitou, Kazuhiro Izui, Shinji Nishiwaki, Panos Papalambros, A Survey of Structural Optimization in Mechanical Development, Journal of Computing and Information Science in Engineering (2005), vol. 5
[8] Xiangyang Zhou, Liping Chen, Zhengdong Huang, The SIMP-SRV Method for Stiffness Topology Optimization of Continuum Structures, CAD Center, School of Mechanical Science & Engineering, HuaZhong University of Science and Technology, Wuhan, Hubei, P.R.

Materials and mix proportion Materials：Ordinary Portland cement P.O42.5, the compression strength at 28 days is 46.8 MPa; well-graded granite gravel with size from 5 mm to 31.5 mm, needle-like particles less than 5.3%, crushing index less than 6.8%, mud content less than 0.4% and apparent density 2620 kg/m3; river sand with fineness modulus of 2.9, mud content less than 1.8% and apparent density 2620 kg/m3; the air entraining agent.
When preparing fiber reinforced concrete in this paper, more attention was paid to the mixing procedure of materials and the random sampling inspection for fiber dispersion, which ensured the fiber distributed evenly in concrete.
[4] Hou Xiaofeng, Fang Qin, Zhang Yuning et al,Journal of PLA University of Science and Technology (Natural Science Edition), Vol.6(2005),p.351-354,in Chinese
[7] Yang Chengzhong, Liu Xinrong, Li Hong, et al, Journal of Chongqing Architecture University,Vol.30(2008),p.42-45,in Chinese
[8] Yu Jiahuan, He Gaixian, Zhao Fuxiao, et al, Journal of Shenyang Architecture University (Natural Science Edition), Vol.23( 2007),p.397-400,in Chinese.

Effect Of Solution Treatment on the Properties and Microstructural Evolution of Al-Zn-Mg-Cu-Er-Zr Alloy Juntai Lu a *, Hui Huangb, Hao Wuc, Shengping Wend, Kunyuan Gao f and Zuoren Nieg School of Materials Science and Engineering, Beijing University of Technology, Beijing 100124, People’s Republic of China alujuntai@126.com, bhuanghui@bjut.edu.cn, cwuhao2469@126.com, dwensp@bjut.edu.cn, fgaokunyuan@bjut.edu.cn, gzrnie@bjut.edu.cn Keywords: Al-Zn-Mg-Cu-Er-Zr alloy, solution treatment, microstructural evolution, Al3(Er,Zr) particles.
Keidel, Recent development in aluminium alloys for aerospace applications, Material Science and Engineering A. 280 (2000) 102-107
Yu, A new way to cast high-alloyed Al–Zn–Mg–Cu–Zr for super-high strength and toughness, Journal of Materials Processing Technology. 171 (2006) 399-404
Characterization of constituent particles and overheating, Material Science and Engineering A. 534 (2012) 234-243
Zhang, The improvement of constituent dissolution and mechanical properties of 7055 aluminum alloy by stepped heat treatments, Journal of Materials Processing Technology. 142 (2003) 190-196

Kuznetsova, Preparation methods for composite ceramic materials based on AlN–BN (Review), Refractories and Industrial Ceramics, 54 (2) (2013) 141-148
Niihara, Hot-pressed AlN/BN composite with excellent mechanical and thermal properties, Materials Science Forum, 544-545 (2007) 761-764
Jin, Study of machinable AlN/BN ceramic composites, Materials Letters, 60 (2) (2006) 190–193
Shore, Reactions of aluminum hydride derivatives with ammonia-borane: a new approach toward AlN/BN materials, Chemistry of Materials, 8 (1996) 2839-2842
Strutt, Synthesis of aluminum nitride / boron nitride composite materials, Journal of American Ceramic Society, 76 (4) (1993) 987-992

This glass is environmentally friendly materials.
Refractive index is the important parameter for the transparent materials and largely depended on the density or specific gravity of the material.
Best of all, the prepared glass is one of environmental friendly materials.
Bajaj et al.: Journal of Non-Crystalline Solids, Vol. 355 (2009), p. 45
Conradt: Potential Utilization of Different Local Raw Materials (Chulalongkorn University, Thailand 1990)

Goswami: Materials and Design Vol. 28 (2007), p. 1477
Guinier: Materials Science Forum Vols. 217-222 (1996), p. 3
Kulak: Materials Science Forum Vols. 331-337 (2000), p. 127
Borah: Materials Science and Engineering A Vol. 508 (2009), p. 167
[17] Baytubes® C 150 P Datasheet: Bayer Materials Science, edition 2008-03-10

Introduction Magnetic nanomaterials, one of the hot topics in the world of materials, possess distinctive magnetic properties different from conventional magnetic materials.
Acknowledgments The authors would like to thank the National Natural Science Foundation of China (NNSFC, No. 61271049) References [1] Rui Gu, Xinglong Gong,Wangquan Jiang,Lingyun Hao,Shouhu Xuan,Zhong Zhang, Synthesis and rheological investigation of a magnetic fluid using olivary silica-coated iron particles as a precursor, Journal of Magnetism and Magnetic Materials 320(2008) 2788-2791
[3] Paul G, Das P K, Manna I, Synthesis, characterization and studies on magneto-viscous properties of magnetite dispersed water based nanofluids, Journal of Magnetism & Magnetic Materials 404 (2016) 29-39
[7] Z Li, H Chen, A Haobo Bao, M Gao, One-Pot Reaction to Synthesize Water-Soluble Magnetite Nanocrystals, Chemistry of Materials 16 (2004) 1391-1393
Local arrangement of particles in magnetic fluids due to the measurement alternating field, Journal of Magnetism and Magnetic Materials, 2017, 438: 116-120

Experimental materials and methods AZ91D magnesium alloy sheet was used as test material which was cut into the size of 25mm × 25mm × 3mm, and polished by the sandpaper and degrease.
KAINER: Wrought magnesium alloys for structural applications (Materials Science and Technology, China 2008)
JIANG: Factors Influencing Plating Rate of Electroless Ni-P Plating and Optimization of the Plating Process (Materials Protection, China 2008)
JUNG: Effect of reflow time on interfacial reaction and shear strength of Sn–0.7Cu solder/Cu and electroless Ni–P BGA joints (Journal of Alloys and Compounds, Holland 2004)
DU: Ni as diffusion barriers between eutectic Sn Ag solder and Cu (The Chinese Journal of Nonferrous Metals, China 2000)

The utilization of effective materials such as cement, flyash, silica fume and PP fibre were used in this investigation.
Materials Cement Cement of Ordinary Portland Cement (OPC) OF GRADE 53 was used.
Heat map of materials used for Fibre reinforced foam concrete Figure 5, shows the heat map for the cross validation of average materials used as a function of six parameters are cement, silica fume, flyash, polypropylene fiber, foaming agent and water.
Series: Materials Science and Engineering, 989, doi:10.1088/1757-899X/989/1/012024, 2020
[26] Shahul Hameed, M., Sekar, A.S.S., “Properties of green concrete containing quarry rock dust and marble sludge powder as fine aggregate”, ARPN Journal of Engineering and Applied Sciences, ISSN 1819-6608, Vol.4, No.4, pp.1-7, 2009

The curves of permeability coefficient and volume water content of the slope material with matrix suction as shown in Fig. 1, Fig. 2.
Journal of Liaoning Technical University, 2007, 26(2):235-237
Analysis on Unsaturated Seepage Calculation Parameter [J].Journal of YANGTZE River Scientific Research Institute, 2004, 21(5):28-31
Study on Stability of Slope and Mechanisms of Deformation and Failure of Embankment [D].WUHAN: INSTITUTE OF ROCK & SOIL MECHANICS CHINESE ACADEMY OF SCIENCES, 2006.12
Clem: submitted to Journal of Materials Research (2003)