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The stress intensity factor analysis of crack tip in plastic zone Glass fiber reinforced plastic composite materials are used in a wind turbine blade in this paper, the classic fracture theory is not suitable for the crack-tip’s stress field of this kind of composite material.
Examples In the modeling, width of the flat is b = 0.2 m, the crack length is 2a, the material of the elastic modulus is Pa, and, the Poisson ratio is 0.29.
Acknowledgments The paper is supported by National Natural Science Foundation of China (50975180 and 51005159) and Foundation of Liaoning Educational Committee (L2010401).
[6] Nakagaki, M. and Atluri, S.N: Structures and Materials, Vol. 18 (1980) No.9, p.1110~1117
Pierre: Journal of Sound and Vibration, Vol.138 (1990), p.115~134.

“4M1E” Factors and Analytic Hierarchy Process (AHP) The influence factors mainly include five aspects: Man, Material, Machine, Method and Environment，referred to 4M1E factors[2].
Material factor: It directly influences the construction quality, especially for structural materials, so the material quality assurance is the premise of engineering quality.
Table 5 Judgment matrix of material factor B2 C4 C5 C6 Wi C4 1.0000 3.0000 0.2000 0.1782 C5 0.3333 1.0000 0.1111 0.0704 C6 5.0000 9.0000 1.0000 0.7514 Judgment matrix consistency ratio：0.0279＜0.1，meet the consistency；Weight of total goal：0.6377.
Communicating Design Quality Requirment for Public Sector Design, Journal of Management Engineering(2008) [2] Qi Chen: the Research of key Problems in Construction Quality Control, in:Architectural Technology and Applications(2006) [3] Maosheng Yang, Operational research .
Xi 'an: Shaanxi Science and Technology Press(2011)

Rietveld refinement of the BaTiO3 from X-ray powder diffraction Sun Feng1, a , Yin yansheng1,b 1 Institute of Material Science and Engineering; Ocean University of China; Qingdao 266003; China a kyoback@ouc.edu.cn, byys2003@ouc.edu.cn Keywords: Ferroelectric Ceramic; X-ray diffraction; Crystal structure Abstract.
The raw materials were C16H36O4Ti , Ba(OOCCH3)2, C2H5OH, CH3CO2H.
Grain size effect on ferroelectric phase transition in Pb1-xBaxTiO3 ceramics.J.Phys.Chem.Solid. 1998,59(6-7):1161~1167 [2] P.P.Phule,S.H.Risbud.Review-Low-temperature synthesis and processing of electronic materials in the BaO-TiO2 system [J].
Journal of Materials Seience,1990,25(2B):1169-1183

Basic Assumptions (1) a model materials for an ideal elastic-plastic;(2) the same of the component section remains when the lateral bending and twisting;(3) The side of the twist deformation is a very small ;(4) Component without defect.
Material Model The ANSYS takes ideal elastic-plastic model.
The Solving steps and methods of ANSYS (1) Selecting unit type, defined unit real constant and built the ideal model of unit elasto-plastic material
(2) Building finite element analysis model, attached geometry and material characteristics to the flange, webs and so on, divided unit grid, and built finite element model of wedge-shaped beam
Journal of Xi＇an University of Architecture & Technology, 1998 [2] Ping Ji.

Hayat, Darcy–Forchheimer stretched flow of MHD Maxwell material with heterogeneous and homogeneous reactions, Neural Comput. & Applic. (2017) DOI 10.1007/s00521-017-3037-1 [11] T.
Thermal Sciences 50 (2011) 1207-1214
Tshehla, MHD flow of a variable viscosity nanofluid over a radially stretching convective surface with radiative heat, Journal of Molecular Liquids 219 (2016) 624–630
Magnetism and Magnetic Materials 397 (2016) 108-114
Upendar, Effect of double stratification on MHD free convection in a micropolar fluid, Journal of the Egyptian Mathematical Society 21 (2013) 370-378

Test Materials Carbon fibers CCF300 and T300, two sizing agents (A and B), resins QY8911 and 5405.
Application of carbon composite materials for civil aviation.
The application of carbon fiber composite materials in Giant Plane.
Civil aviation and advanced composite materials.
Journal of Materials Engineering 2009; S2: 207-210.

Introduction The creation of new products is a multifaceted problem, which includes development of the structural materials and manufacturing techniques of different parts with the required shape, size and performance properties.
Therefore, during the data transfer, program requests separately key-file that contains information about the material properties.
Chen, Continuum Scale Simulation of Engineering Materials: Fundamentals–Microstructures–Process Applications, Wiley-VCH, Weinheim, 2004
Lai, Research on the converse design of aluminum alloy connecting-rod slab based on casting-forging coordinates process, Applied Mechanics and Materials. 44-47 (2011) 153-157
Morimoto, Process metallurgy design of aluminum alloy sheet rolling by using two-scale finite element analysis and optimization algorithm, International Journal of Mechanical Sciences. 52 (2010) 146-157

Acknowledgements This work was financially supported by the National Natural Science Foundation of China (50908236), the Research Fund for the Doctoral Program of Higher Education of China (200916210038), the Hunan Provincial Natural Science Foundation of China (09JJ4022), the Foundation of the Science and Technology of China Ministry of Railway (2008G031-17-1), Special Foundation of China Postdoctoral Science (201003521).
Sciences press, Beijing (2007).
Sciences press, Beijing (2005).
ACI Journal Proceedings, Vol. 76(1979), p: 919-933
China Civil Engineering Journal, Vol. 32(1999), p. 10-14.

Acknowledgement Foundation Project: “973” Program (No. 2009CB125909), Inner Mongolia Natural Science Foundation (20080404Zd13，20080404MS0402) and National Science and Technology Supporting Item (2011BAC02B03).
[6] Huifeng Xu, Xingtu Liu, Junhong Bai, Dynamic Change and Environmental Effects of Soil Microorganism in Marsh Soils from Carex Meyeriana Wetlands in Changbai Mountain, Journal of Soil Water Conservation Vol. 3(2004), p. 115–118,in Chinese
Environmental Science & Technology Vol. 1(2007), p. 108-110,in Chinese
Journal of Soil and Water Conservation Vol. 1(2005), p. 49-53,in Chinese
[10] Jiaen Zhang, Zongwen Liao , Discussion on soil ecological fertility and its cultivation, Soil and Environmental Sciences Vol.3 (2000), p. 253–256,in Chinese

Research on Chamber Earth Pressure of EPB Shield Considering Soil Arching Effect Jing Cao 1,a, Haixing Yang1,b, Bo Liang1,2,c，Haiming Liu 1 (1 Faculty of Architecture Engineering Kunming University of Science and Technology, Kunming, Yunnan 650500,China) (2 Kunming Metro Construction Management Co.Ltd., Kunming, Yunnan, 650011,China) acjlb117@sina.com, byhx410951@126.com, ckmgdjtlb@163.com Corresponding author: Cao Jing, Doctor, Professor, E-mail: cjlb117@sina.com Keywords: shield tunnel; EPB shield; chamber earth pressure; soil arching effect.
Acknowledgement This work is financially supported by the National Science Foundation of China (51304088) References [1] Xinpeng Hu, Mou Sun, Jianhua Li, etc:Chinese of Journal of Underground Space and Engineering, Vol. 2(2003), p. 1413 [In Chinese] [2] Liangwen Wei, Qinghe Zhang, Tongli Sun, etc:Journal of Chongqing Jiaotong University (Natural Science), Vol. 26(2007), p. 67~72 [In Chinese]
In Advanced Research on Material Science, Environment Science and Computer Science Ⅲ.