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Polyurethane foam belongs to the group of light, but quite strong materials, and has very low thermal conductivity, low vapour permeability and high adhesion to any materials.
Today, the study of the behavior of these materials is based mainly on experimental research.
The change in Young's modulus for the studied materials was 32%, 22%, and 29%, respectively, for materials with a weight ratio of 1:1, 1.2:1, and 1:1.2, respectively.
Fusek, Loading and unloading curve of foam material based he compression test, Journal of Mechanical Engineering. 69, 3 (2019) 3-8
Lei, Research the Static Compression Test of Polyurethane Foam / Honeycomb Paperboard Composite Material, The Open Materials Science Journal. 9 (2015) 64-70

Journal of Thermal Spray Technology, Vol 16(3)(2007), p 344-348 [2].
H.M.Wang, L.Y.Zhang: Process on Rapid Solidification Laser Processing for Advanced Materials and Components, J.
Applied Surface Science, 255(2008), p 1646-1653 [4].
Materials and Manufacturing Processes, Vol 19 (No.2)(2004), p 243-258 [5].
Advanced Engineering Materials, No 7(2006), p 619-623 [7].

Introduction Composite materials are widely used in many fields of aviation, spaceflight, cars, chemical industry and machinery manufacture as a kind of materials with light quality, high hardness and corrosion resistance.
Its material parameters are given in the Table 1[9].
Journal of Shanghai University, 1996，30(8) [2] Zheng Zhang, Farid Taheri.
Chinese Journal of Computational Mechanics,2007, 24(4), P486-P493
European Journal of Mechanics - A/Solids,2011

Meinders2, c 1 Materials Innovation Institute, P.O.
In this work, Lemaitre’s anisotropic damage model has been slightly modified for sheet metal forming applications and for strain rate dependent materials.
The formability of these materials is limited mainly due to damage development [1].
Geers, Mechanics of Materials Vol. 41(2009), p. 1264–1276
Lim, International Journal of Mechanical Sciences Vol. 50(2008), p. 918–931

Compared with LGS, LGN and LGT, Sr3NbGa3Si2O14 (SNGS) and Sr3TaGa3Si2O14 (STGS), Ca3NbGa3Si2O14(CNGS) and Ca3TaGa3Si2O14(CTGS) only contain about half of the Ga element, which reduce the cost of raw materials.
When these materials are used in the application of SAW device, the substrate of these devices require high k2, low temperature coefficient of frequency(TCF), zero power flow angle(PFA), etc.
So these new materials are more attractive when we want to reduce the insertion loss of SAW devices in application.
Journal of Sythetic Crystals. 39(2010)291-297
[6] D.Puccio, D.C.Malocha, M..M.Chou, et al, SAW Parameters on Y-cut Langasite Structured Materials, IEEE Ultrasonics.Symposium, 2007: 1837-1881

The possession and the quality of bamboo material in China rank the leading position in the world.
And the utilization of this material is low [10].
The mechanical properties of bamboo material and BFRP-plate are given in Table 1.
Table 1 Mechanical Properties of Materials Material Standard Value of Compressive Strength (Mpa) Standard Value of Tensile Strength (Mpa) Elastic Modulus (Mpa) Bamboo Material 57.26 104.13 9380 BFRP-plate / 1458 73871.3 Six beams are manufactured in the experiment.
[9] Chen Guo, Shan Bo and Xiao Yan: submitted to Journal of Vibration and Shock (2011) [10] Lv Qingfang，Wei Yang，Zhang Qisheng et.al: submitted to Research & Application of Building Materials (2008) [11] Plevris N and Triantafillou TC: submitted to Journal of Materials in Civil Engineering (1992) [12] Gilfillan J, Gilbert S and Patrick G: submitted to Journal of the Institute of Wood Science (2001) [13] Blass H, Romani M: submitted to Holz als roh-und werkstoff (2001) [14] Yongxian C, in: Flexural analysis and design of timber strengthened with high strength composites, edited by the State University of New Jersey, New Jersey (2003) [15] Buell TW, Saadatmanesh H: submitted to Journal of Structural Engineering, (2005) [16] Yang Huifeng, Liu Weiqing: submitted to Journal of Jiangsu University (Natural Science Edition) (2006) [17] Yang Huifeng and Liu Weiqing: submitted to Journal of Nanjing University of Technology(Natural Science Edition) (2006) [18] Ma Jianxun, Jiang Xiangmin

Materials and methods Rice husks were obtained from the rice Mill in Jilin province in China.
Rocha: Journal of Hazardous Materials Vol. 152 (2008)，p. 1073 [8] Anna Witek-Krowiak, Roman G.
Prasad: Journal of Hazardous Materials Vol.
Dang-Vu: Process Safety and Environment Protection Vol. 86 ( 2008 ), p.250 [14] Fatemeh Asadi, Hossien Shariatmadari, Noorallah Mirghaffari: Journal of Hazardous Materials Vol.154 (2008) , p.452 [15] Kishore K.
Boddu: Journal of Hazardous Materials Vol.153 (2008),p.1223 [16] K.

Hydraulic concrete is the major construction materials in hydraulic engineering, particularly for mass hydraulic structure.
Reducing volumetric change of concrete bulk during hardening age, adopting low hydration heat and low alkalinity cementitious materials, are effective for hydraulic concrete durability enhancement.
[4] Wang Wenlong, Jiang Qingshan: Journal of Irrigation and Drainage, Chinese Academy Of Agricultural Sciences, Henan, China, 2006(3), p. 63-65
[13] Yu-Wen Liu: Construction and Building Materials, Elsevier, Volume 21, Issue 5, May 2007, p. 972-977
[14] Elzbieta Horszczaruk: Wear, 15th International Conference on Wear of Materials, TN, USA, Volume 259, Issues 1-6, July-August 2005, p. 62-69

Journal of Materials Processing Technology. 189 (1-3) (2007) 237-241
Materials Science and Engineering: A. 454-455 (2007) 300-309
Materials Science and Engineering: A. 528 (13–14) (2011) 4732-4739
Computational Materials Science. 73 (0) (2013)15-23
Materials Science and Engineering: A. 552 (0) (2012) 502-513

Also, chemical components of the species are rich as medicinal materials and volatilized factor is of great potential as a source of essential oil [4, 5].
Materials and Methods The C. grammatus used in this study were collected from Anyuan county, Southern China.
Furukawa: Flavour and Fragrance Journal Vol.5 (1990), p. 85 [2] J.W.
Zhu: China Journal of Chinese Material Medica Vol. 36 (2011), p. 41 [6] V.S.
Cheng: Journal of Genetics Vol. 91 (2012), p. 37