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Abstract: Composite materials are now a day most frequently used materials in aerospace structures.
They also increase weight of the system tat may nullify the advantages we get from composite materials.
These composite materials are mostly carbon fibre reinforced composites [1,4,6-8,9,10] and fibreglass reinforced composites[2,11].
There are number of studies on mechanically fastened composite materials [4,6-10,14,15].
The basic materials used to prepare joints of composite material were carbon gibers,glass fiber, epoxy, polyvinyl alcohol, wax polish, nut and bolt.

CFRP contains at least two phases of materials to possess different mechanical properties, which leads to the different mechanism of material removal from that of machining single-phased materials, such as metals [1-3].
Miranda: Journal of Materials Processing Technology, Vol.92-93(1999), pp.135-140
[3] Y.G.Wang, X.P.Yan: Advanced Materials Research .Vol. 215 (2011), pp.14-18
[6] X.Wang, L.J.Wang, J.P.Tao: Journal of Materials Processing Technology, Vol.148 (2004), pp.239-244
Paulo Davim, Pedro Reis: Journal of Materials Processing Technology, Vol.160 (2005), pp.160-167

Introduction Cement concrete is one of the most common building materials, with many advantages that other building materials cannot compare with.
In recent years, people use many means to improve the concrete cracking resistance, such as optimizing the concrete mix proportion, using polymeric materials and adding fibrous materials.
Acknowledgement This work has been supported by Chinese National Science Foundation (51078261).
[6] Li-hu Yang, Han Zhu and Yan-ru Li: Journal of Basic Science and Engineering Vol. 18 (2010), p. 609 (In Chinese)
[8] Han Zhu, Chun-sheng Liu and Yong-ming Zhang: Journal of Tianjin University Vol. 40 (2007), p. 761 (In Chinese)

For relatively long beams made of isotropic materials, the magnitude of this refinement is small.
Wang, Analytical solution for fixed-end beam subjected to uniform load, Journal of Zhejiang University: Science. 6A(8). 779-783 (2005)
Liu, Plane elasticity solutions for beams with fixed ends, Journal of Zhejiang University: Science A. 16(10). 805-819 (2015)
Ding, The analytical solutions for orthotropic cantilever beams (II): solutions for density functionally graded beams, Journal of Zhejiang University (SCIENCE). 6A(3). 155-158 (2005)
Pan, Exact static analysis of partially composite beams and beam-columns, International Journal of Mechanical Sciences. 49(2). 239-255 (2007)

White materials.
The Royal Society of Chemistry, Cambridge, UK, Blackwell Science 1997
Aerogel-based thermal superinsulation: an overview, Journal of sol-gel science and technology, Vol. 63(3) (2012) p. 315-339 [63] R.
Journal of Non-Crystalline Solids, Vol.186 (1995) p. 244-255
Journal of Building Physics, Vol. 35(2) (2011) p. 128-167 [72] M.

In three kinds of materials, the hardness of A31 is highest (68HRC).
Zhai: Materials Science & Technology, Vol. 16(2) (2008), p.271 [2] L.
Long: Chinese Journal of Mechanical Engneering, Vol. 44(9)( 2008), p.50 [5] Z.
Mei: Journal of Engineering Thermophysics, Vol. 17(1)( 1996), p.346 [8] X.
Ai: Engneering Science, Vol. 2(11)( 2000) , p.40 [9] Z.

From the aspect of the development of science and technology, it represents the production technology level of a specific historical stage in the process of social development, and reflects the application of scientific and technological achievements to practical production.
No matter the application of new building materials in the construction of factory buildings, the practice of the new construction technology, or the new development of natural science and technology reflected through the mechanical, chemical or materials technology during the production, they all show science and technology level of Tianjin in the past
(3) Beneficial to Achieve Low-carbon Economy and Ecological Environmental Protection A building will consume large amounts of energy and emissions of carbon dioxide and other pollutants from the production materials to the construction, so it always destroys the ecological environment.
Journal of South China University of Technology, 2005 (8) [3]Yu kongjian Primary Study on Chinese Industrial Heritage.
Architectural Journal, 2006

Materials Science and Engineering A213 (1996), p. 103 [2] F.H.
Materials Science and Engineering A 213(1996), p. 8 [6] R.
Materials Science and Engineering C 26 (2006), p. 1269 [14] E.B.
Materials Science and Engineering C 24 (2004), p. 683 [15] N.
Journal of Materials Processing Technology Vol. 150 (2004), p. 2 [16] G.

Compared to other smart materials, GMM has faster response and larger magnetostrictive strain.
Journal of Jilin University (Engineering Science)(2007)
Journal of Materials Research(2005)
Journal of Zhejiang University(Engineering Science)(2008)
JOURNAL OF MECHANICAL ENGINEERING(2009)

Polymer media, made from polypropylene materials, has float ability and an irregular form.
This study was intended to evaluate the reduction features of nonpoint source pollutants (organic materials) generated on road surface, applying the non-point source pollutant reducing treatment system, along with the generation features.
Partitioning and first flush of metals in urban roadway storm water, Journal of Environmental Engineering, ASCE, vol. 123, No. 2 (1997), p. 134-143
Particles, Metals, and Water Quality in Runoff from Large Urban Watershed, Journal of Environmental Engineering, vol. 123 No. 8 (1997), p. 753-759
Lee: Material science forum vols. 510-511, (2006), p. 718~721.