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Materials .
Table 1 The chemical constituents of cement constituents SiO2 Fe2O3 AI2O3 CaO MgO SO3 C3A Loss Content (%) 29.98 4.57 3.96 56.53 3.97 1.74 2.71 0.75 Table 2 Raw materials of scheme 1 No.
W/C Cement/Kg Water/Kg Sand/Kg Stone/Kg C1 0.45 366 165 820 1005 C2 0.5 366 183 744 1116 C3 0.55 366 201 739 1107 C4 0.6 366 220 734 1101 Table3 Raw materials contene of scheme 2 No.
(Science and Technology).Vol.39(2008).p603-606(in Chinese) [3] Yingfang Fan,JingZHou: China Civil engineering Journal.Vol.37(2004),p. 25 (in Chinese) [4] Yahui Liu,CHunni SHenandXiangweiFang:Journal of CHongqing Jianzhu University.
Journal of Zhejiang University (EngineeringScience).

The fact findings suggested that the fire resistance for longer and fixed to fixed column were required a new guide line for covering of fire protective materials.
This constructional process was much efficient than other construtional materials.
Therefore, to sustain the same fire resistance for longer H-sections in hinge to hinge, the more fire protective materials are recommended.
Acknowledgement This study was supported by the 2010 research grant from the National Research Foundation of Korea (The project number is NRF-2010-0004385) References [1] Venkatesh Kodur, Mahmd Dwaikat, Rustin Fike, High-temperature properties of steel for fire resistance modeling of structures, Journal of Materials in Civil Engineering, 2010, Vol. 22 No. 5, pp. 423-434
[2] In-Kyu Kwon, A study of the properties of SM 400 for evaluation of structural stability at high temperature, Journal of Korean Institute of Fire Science and Engineering, 2013, Vol.

It is one of the strongest building materials, with a tensile strength that rivals steel and weight-to-strength ratio surpassing that of graphite.
The fact that bamboo is not fully utilized in modern structures is due largely to the lack of validation based on the theory of mechanics, material science, structural design and testing [2].
These properties when combined, suggest that bamboo will make a fine addition to the selection of potential reinforcement bar materials.
Especially in many parts of underdeveloped rural area, conventional construction materials such as steel are not only expensive but also difficult to obtain.
Thus, it would be expected that the low-cost bamboo reinforced concrete materials have a wide market in future time in building structures.

Aluminum alloy drill pipe With the advances in materials science and processing technology, aluminum alloy drill pipe in the drilling industry has been increasingly widely used [2,3,4].
So Al alloy 7075 was chosen as experimental material, material properties at room temperature are: σb ≥ 500MPa; δ = 11 ~ 13%.
While hot extrusion above the recrystallization temperature, extrusion speed and temperature will have a significant impact on the flow stress of different materials.
Arabian Journal for Science and Engineering[J], Vol.37, Issue8, 2012, p.2287-2296 [7] Hossein Mohammadi, Mostafa Ketabchi and Ali Kalaki: Microstructural evolution and mechanical properties of back-extruded Al 7075 alloy in the semi-solid state.
International Journal of Material Forming[J], Vol.5, Issue2, 2012, p.109-119 [8] Jian-xin Xie, Jiang-an Liu: Theory and technology of metal exrusion[M].

Owing to the mortar material nonhomogeneous, when the foreside unit of the crack has not had the damage destruction, the units of the mortar specimen which intensity are smaller had been damage destruction.
Key Engineering Materials Vol.265(2004) ,p. 1517-1522 [2] Zhu Wan-cheng, Tang Chun-an, Huang Zhi-ping, Pang Ming-zhang.
Chinese Journal of Rock Mechanics and Engineering Vol.24(2005),p. 1-7 [3] Zhu Wan-cheng, Tang Chun-an,Qi An-wen.
Journal of Northeast University(Natural Science),，Vol.20（1999）,p. 533-535 [5] Zhu Wan-cheng, Huang Ming-li, Tang Chun-an.
Journal of Liaoning Technical University (Natural Science) Vol.19（2000）,p. 271-274 [6] Yao Xue-feng, Xiong Chun-yang, Fang Jing.

Establishment of the Non-linear Finite Model Model Design and Material Selection.
Fig. 1 The sectional dimension and reinforcement of specimen [mm] Table 1 Mechanical properties of materials Materials fy [Mpa] Poisson ratio Elastic modulus [Mpa] Concrete -- 0.167 2.648×104 Longitudinal bar 335 0.3 2.0×105 Stirrup 335 0.3 2.0×105 Constitutive Relations of Materials Constitutive Relation of Concrete.
Liu, Shaking table test and theoretical analysis on RC frame-short pier shear wall structure with special-shaped columns, Journal of Xi’an University of Architecture & Technology, Natural Science Edition, 39 (2007) 610-615
Yao, Dynamic characteristics of flange frame column structure, Journal of Architecture and Civil Engineering, 6 (2009) 57-62
[10] Hasan Kaplan, Salih Yilmaz, Seismic strengthening of RC structures with exterior shear walls, Indian Academy of Sciences, 36 (2011)17-34.

Introduction Potassium dihydrogen phosphate (KDP) crystal is a soluble material in water with positive solubility coefficient [1].
Rapid growth of KDP-type crystals, Progress in Crystal Growth & Characterization of Materials. 43.1(2001)1-118
Optical, structural and microhardness properties of KDP crystals grown from urea-doped solutions, Materials Research Bulletin. 43.10(2008) 2778-2789
[6]Wang K, Lu G, Zhou G, et al.Molecular Dynamics Study on Microstructure of Potassium Dihydrogen Phosphates Solution, Chinese Journal of Chemical Physics. 23.2(2010)160-164
Rapid growth of a large-scale(600 mm aperture) KDP crystal and its optical quality, High Power Laser Science and Engineering. 2.1(2014)40-44

Introduction Polyurethane (PU), one of the six main categories of synthetic materials in the world, are developed very fast and widely used in transportation, furniture and building industry, etc [1].
Li: New Chemical Materials, Vol.38 (2010) No.5, P.112 (In Chinese) [4] E.
Zhang: Advanced Materials.
Xue: Journal of Changchun University of Technology, Vol.28 (2007) No.1, P.17.
Duan: Journal of Wuhan university of Technology, Vol.31 (2009) No.21, P.5.

Abdullah2 1Fracture and Damage Mechanics Research Group, School of Mechatronic Engineering, Universiti Malaysia Perlis, Ulu Pauh Campus, 02600, Arau, Perlis, Malaysia 2Department of Mechanical and Materials Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia aruslizam@unimap.edu.my Keywords: Crack interaction limit, crack unification limit, J-integral, crack interaction Abstract.
Kachanov, Continuum model of medium with cracks, Journal of the Engineering Mechanics Division, ASCE, 106 (1980) 1039-1051
Laures, Mechanics of crack-microcrack interactions, Mechanics of Materials, 10 (1990) 59-71
Lu, On the path dependence of the J-integral in notch problems, International Journal of Solids and Structures, 41(2004) 607-618
Daud, Stress intensity factor under combined bending and torsion moments, Journal of Zhejiang University-SCIENCE A, 13(2012) 1-8.

First, without considering the material damage, establish the expression of creep deformation.
Journal of Northwest university (natural science edition), Vol. 39(1) (2009), p.109-113 [2] LI Hua-min, LI Zhen-hua, SHU Cheng-dong:Testing study on creep characteristics of marble.
International Journal of Rock Mechanics and Mining Sciences, 2004, 41(S1): 1-7
Journal of earth sciences and environment. 2010, 32(2): 200-204
Journal of Engineering Geology, 2007,15(04):545-548