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The Selection of Material unit and Constitutive Relations Separate model is established by ANSYS finite element numerical analysis software, pile body concrete with ribbed 8 node 3d-Solid65 element, considering the effect of spiral stirrups and adopt the Willam-Warnke five parameters failure criteria, Prestressed reinforcement and the prestressing steel bar adopts 3d-LINK8 element.
Pile body material strength parameters is given in table 1, two models of reinforcement section as shown in figure 1, figure 2.
Table 1 Pile body material strength parameters Types of materials Tensile strength (MPa) Compressive strength (MPa) Elasticity modulus (GPa) Prestressed bar 1000 400 200 HRB400 rebar 360 360 200 C80 concrete 3.1 50 38 Fig.1 Prototype pile reinforcement section Fig.2 Contrast pile reinforcement section According to the requirements of practical engineering pile, the prestressed steel of prototype pile is symmetrically configurated along the cross section of the pile, the non-prestressed steel of contrast pile is alternately configurated based on the prototype piles.
(in Chinese ) [6] Yaoting Zhang, Jisheng Qiu:J.Journal of Huazhong University of Science and Technology.Vol. 20-23(2003)p.20.
(in Chinese ) [7] Zhongmiao Zhang, Junwei Liu, Jian Zhou:J.Journal of Zhejiang University.Vol.1074-1079(2011) P.45.

Structural Behaviors of Hybrid High Performance RC Beams with Web Openings Using Hybrid Fibers Lee Seung Jo1, a, Park Jung Min2, b 1Department of Architecture, Chosun College of Science & Technology, Gwangju, 501-744, South Korea 2Department of Architecture, Kyungbuk College, Yeongju, 750-712, South Korea alsj3948@daum.net, bgreen55glee@daum.net Keywords: Hybrid, Garnet, Fly-ash, Web Opening, Nylon, Polypropylene, Steel Fiber Abstract: The purpose of this study is to evaluate the flexural behavior of hybrid high performance RC beams with web openings (Hy-HPRWO) that are constructed by using circle steel tube, hybrid fibers and Garnet, Fly-ash.
Mechanical properties of material To identify the properties of materials used in the manufacture of specimens, tensile strength testing was performed on the steel and compressive strength testing on the concrete.
Therefore, they are expected to be efficient alternative reinforcement materials.
Mcmullellen: Torsion in Concrete Beams Containing and Opening, Journal of the Structural Division, ASCE, Vol. 141 (1962) [2] A.J.
Prasada Rao: RHS Beam-to-column Connection with Web Opening-experimental Study and Finite Element Modelling, Journal of Constructional Steel Research, Vol. 62 (2006), p.739-746 [5] S.J.

Introduction Spinel is one of the most promising materials for use in lithium ion specific selectivity and memory because of its low cost and acceptable environmental characteristics.
The appearance of ion memory inorganic materials (ion sieve) became possible direct extracting lithium from the salt water resources[1-2].
J.Chinese Journal of Applied Chemistry. 2000,17(3),307-311 [3] Sui Lian Luo, Wei Shan Li, Shi Zhou Qiu, et al.
Synthesis and characterization of spinel type high-power cathode material LiMxMn2- xO4( M= Ni, Co, C r) [J] .
Journal of Physics and Chemistry of Solids , 2007, 68: 780-784.

Damping model of viscoelastic materials Although some damping models suggested by several scholars [5,6,7]after Rayleigh firstly introduced the famous theory so called ’visco damping’, represent of damping models is still more difficult for continuous system, appropriate approach contributes to a good goal.
Ideal damping model of viscoelastic material is assumed as (1) where is the damping force in a SDOF system, c is viscous damping constant.
Cestino: Design of solar high altitude long endurance aircraft for multi payload & operations, Aerospace Science and Technology, Vol.10, (2006) No.6, p.541
Frediani: A model for Solar Powered Aircraft Preliminary Design, The Aeronautical Journal, (2008), No.2, p.57
Bond: Aerodynamic and Structural Design of A Solar-powered Micro Unmanned Air Vehicle, Journal of Aerospace Engineering, Vol. 214 (2000) No. 2, p.97

Material under rolling was microalloyed steel (0.07C-1.6Mn-0.4Si-0.08V-0.05Nb-0.2Ni, %).
Szpunar, The edge-cracking of AISI 304 stainless steel during hot-rolling, Journal of materials science. 34 (1999) 4727-4735
Stahlberg, Transversal cracks and their behavior in the hot rolling of steel slabs, Journal of Materials Processing Technology. 101 (2003) 312-321

In this paper, further lower load (i.e. long term) simulations have been performed on the AR and PC materials to examine the CCG behaviour of both materials under the stress levels corresponding to the lower shelf creep ductility region.
This may suggest that for the given materials and conditions, similar creep ductility trends can also be found in the PC and AR materials at the upper shelf and lower shelf regions which are corresponding to relatively high and low stress levels, respectively.
It has been shown in [5] that the average creep strain rate trends of the PC and AR materials are similar at 550 °C.
This implies that when the applied load is sufficiently low in AR and PC materials, the plasticity effects will be negligible for both materials and a similar CCG trend, which corresponds to the estimated lower shelf creep ductility of 316H at 550 °C, will be obtained.
F., On Creep Fracture by Void Growth, Progress in Material Science, 1982, 27, pp. 189-244

To identify the material parameters, uniaxial tensile tests and bias tests have been employed.
Introduction Resin Transfer Molding (RTM) is one of the most used manufacturing processes for industrial composite materials [1].
Computational Materials Science, 2007, 40:439–448 [3] Arbter R & al, Experimental determination of the permeability of textiles: A benchmark exercise.
Influence of tensile, in-plane shear and bending stiffnesses, Composites Science and Technology, 2011, 71 (5): 683-692
International Journal of Material forming, 2010, 3(Suppl 2): 1205-1216 [11] Allaoui S, Boisse P, Chatel S, Hamila N, Hivet G, Soulat D, Vidal- Salle E, Experimental and numerical analyses of textile reinforcement forming of a tetrahedral shape, Composites Part A, 2011, 42:612–622.

On the other hand, an increased heat in deformation zones will lead to a pre-heating of the material entering the shear zone, which will also lead to a softening of the material.
The plastic material behavior is described by a modified J-C equation.
Acknowledgements The authors gratefully acknowledge the foundation by the National Natural Science Foundation of China (NSFC) with the project number 50665001.
Journal of Mechanical Strength.
Computational Materials Science.

Teachers should fully play the role of teaching materials and make knowledge a medium of interest, every kind of physical education materials and progress has new concept, new technologies and new movements which can cause students to doubt and arouse their curiosity and craving for knowledge[15].Therefore, physical education teaching must be based on the task of teaching ,strict and systematic teaching materials, adopt a variety of teaching methods, maximize students' potential and integration of knowledge, scientific and interest.
The selection of teaching materials should not only base on the requirement of teaching aim and students' practical condition but also consider students' demand and interest.
The difficult level of teaching materials should be suitable for students' current actual level and can not take into more difficult phase.
Journal of Guidance, Control, 2001. 10(5): p. 483-491
Journal of survey, 1998. 21(5): p. 684-691

It can range from a simple hut to a complex building constructed from various materials such as timber, masonry, or concrete.
In contrast, windows and doors should be made of materials that transmit less light and heat, and low-emissivity (low-e) glass is recommended.
Materials Science for Energy Technologies, 3, 679-689
Journal of UrbanPlanning
Training materials for the Shenzhen Code for Energy-saving Design of Residential Buildings.