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Introduction Piezoelectric materials have received increased attention for applications in smart structure/materials systems.
The property of the piezoelectric materials will provide a control mean for damaged structures.
Zhou: Journal of Sound and Vibration Vol.188 (1995), p.189 [2] R.C.
Shen: Journal of Sound and Vibration Vol.264 (2003), p.911 [4] C.L.
Wang: International Journal of Fracture Vol.33 (1987), p.3 [5] C.Y.

High-strength steel materials are used to optimize the design of this new structure, which result in the optimal size.
At present, the most successful and widely used lightweight materials are magnesium alloy, aluminum and high strength steel.
The original subframe is using ordinary steel, and the material parameter is shown in Table 3.
High strength steel is selected as the lightweight material, and compared selection is conducted
The new subframe of high strength steel can get nearly 54% weight loss, let alone 20% weight loss by using raw materials.

Amyotte, I2SI: a comprehensive quantitative tool for inherent safety and cost evaluation, Journal of Loss Prevention in the Process Industries 15, (2005) 279–289 (Elsevier Science Ltd
Journal of Hazardous Materials 182, (2010) pp. 394-402
Omega, the International Journal of Management Science, 35, (2007) pp. 384-388
Safety Science, 50, (2012) pp. 228-239
Beijing: China Agricultural Science and Technology Press, (2008) pp. 62-63

Acknowledgements This work was financially supported by major projects of national science and technology (2009ZX07104-002).
Xia, Trend of geological hazards and counter measure of disaster, Journal of Mountain Science. 22 (2004) 719-724
Yao, Performance study of constructed rapid infiltration in Three Gorges Reservoir Region, Journal of Chongqing University (Natural Science Edition). 29 (2006) 132-136.
Sewage plant in Creances, Water Science and Technology. 24 (1991) 287-293
Wang, Study on nitrogen removal enhanced by shunt distributing wastewater in a constructed subsurface infiltration system under intermittent operation mode, Journal of Hazardous Materials. 189 (2011) 336-341.

China 2 Food Science & Nutrition Department, Nanjing Normal University, Nanjing, 210097, P.
China 3 Material Science and Chemical Engineering School, Ningbo University, Ningbo, 315211, P.
References [1] Zhigang Xu, Yufei Hu, Yuling Hu: Journal of Chromatography A, 2010, 1217(22): 3612-3618
Willner: Langmuir: the ACS journal of surfaces and colloids, 11(1995) 1313-1317
[16] Leyu Wang, Jie Bao, Lun Wang Prof: Chemistry-A European Journal, 2006, 12(24): 6341-6347

Experimental Methods Materials used and specimen manufacture.
Juang: Journal of Materials in Civil Engineering, June (2007), p. 465
He: Construction and Building Materials, Vol. 18 (2004), p. 399
Zhang: Journal of Wuhan University of Technology(Transportation Science & Engineeriong), Vol. 35 (2011) No. 3, p. 471.
Dai: Journal of Chang’an University (Natural Science), Vol. 24 (2004) No. 5, p. 11.

Acknowledgements This work was financially supported by the National Natural Science Foundation of China(No. 81201015)and Tianjin municipal commission of education (No. 20100423).
References [1] Yang Zhiyong,Han jianmin,Li weijing．Chinese Journal of mechanical engineering, vol.46,issue2(2010) , p. 88-92．
Chinese Journal of mechanical engineering, vol.44,issue2(2008) , p. 145–151．
(in Chinese) [3] Zagrodzki P, Lam K B, Al Bahkali E, et al．Journal of Tribology, vol.123,issue4(,2001), p.699–708
Journal of Automobile Engineering, vol. 205issue2(1991),p.137–146．

Most polymeric materials ignore microwave frequencies due to their low dipole moment.
Results and Discussion The main task in the formation of composite materials is the qualitative distribution of modifying materials in the polymer matrix.
Gomez, Microwave processing of calcium zirconate from CaO and ZrO2, Advances in Technology and Materials Processing Journal, 5[2] (2003) 92-97
Zavrazhina, Microwave modification of polymer-carbon materials, Materials Science Forum, Volume 945 (2018) 443-447
Journal of Molecular Liquids, Vol. 253 (2018) 340-346.

According to the literature [10], the value of n can be used to judge creep mechanism of materials.
SSTT:Determination of Mechanical Properties of Materials By Small Punch and Other Miniature Testing Techniques.2010
Size effect studies of the creep behavior of a pressure vessel steel at temperatures from 700 to 900 ℃[J].Journal of Nuclear Materials,2002,305:112-123
Characterization of the creep properties of heat resistant 9-12 chromium steels by miniature specimen testing [J].Materials Science & Engineering A, 2013, 585：335-342
The Apparent Internal Stress in Creep of Alloys Strengthened by Coherent Particles With Long Range Ordered Structure[J].Materials Science and Engineering,1976, 24(2):287

Science.
The evolution of production technologies of renewable energies has not been possible without the evolution of the materials of which the basic functional components are mad, but the research regarding new resources of energetic raw materials.
Renewable energy systems comprise advanced materials that make the conversion of the above-mentioned sources in electric or thermal energy: · advanced materials for photovoltaic cells (semi-conductors of types GaAs, Cd-Te, or CuInSe2, semi-conductor polymers, solar cell based on nanostructure sensitized with porous nano-crystalline TiO2 dye and dyes based on ruthenium complex, complex dyes of zinc coupled with fullerenes), · advanced materials for aeolian energy (composite materials based on glass fibers, carbon fibers, Kevlar fibers, permanent magnets based on neodym).
The main components of the renewable energy systems are made of advanced materials.
Nicolescu, Methodology of transdisciplinarity – levels of reality, logic of the included middle and complexity, Transdisciplinary Journal of Engineering & Science Vol: 1, No:1, December, 2010, pp. 19-38.