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Steel (ρ=7800 kg/m3, E=2.06×1011 N/m2, σ=0.3) is the selected material of bolt and flange.
The PZT ceramics material is PZT-41.
Acknowledgements This project is supported by the National Natural Science Foundation of China (No. 50875057).
Zhao: Journal of Vibration, Measurement & Diagnosis, Vol. 24 (2004), p.1-5.
Kim: Journal of Applied Physics, Vol. 44 (2005), pp.412-416

Crystallization Behavior of Nano-ZnO/PET and Nano-ZnO/polyethylene glycol (PEG)/PET composites by in-situ Polymerization Jie Tao 1 , Xiang Dong2 , Tao Wang 3 and Yihua Cui 4 1, 2, 3, 4 College of Materials Sciences and Technology, Nanjing University of Aeronautics and Astronautics, Yudao Str. 29, Nanjing 210016, P R China 1 taojie@nuaa.edu.cn, 2 dongx1980@163.com, 3 taowang@nuaa.edu.cn, 4 cuiyh@nuaa.edu.cn Keyword: in situ polymerization, polyethylene terephthalate, nanocomposites, crystallization Abstract In order to improve the crystallization properties of the polyethylene terephthalate (PET), nano-zinc oxide (nano-ZnO)/PET and nano-ZnO/polyethylene glycol (PEG)/PET composites were successfully synthesized by in-situ polymerization method in this work.
Polyethylene terephthalate (PET) is a polymer material with low cost and high performance, which has been extensively used in manufacturing bottles, films, fibers, etc [3, 5-7].
[5] Qu CF: Journal of Polymer Research. 9(2002), p. 151
[10] Wu M, Shaw LL: Journal of power sources. 136(2004), p. 37

Introduction Silicon carbide(SiC) is the material of choice for modern high power and high frequency semiconductor devices which could sustain extremly high temperatures.
This area, also called effective area, is usually smaller than the geometric area of the SBD and is an important factor in the evaluation of total current passing through the Schottky diode as can be seen in Eq. 1 below: I = A∗NAeffT2exp(−βΦ eff B )[exp(βVa) − 1]. (1) Where β = q/kT, with k as Boltzmann's constant; N is the total number of low barrier patches, present in the SBD, and is taken to be a free parameter which may vary with temperature or the kind of material used for the Schottky contact.
Tung: Material Science and Engineering R Vol.35(2001),p.1-138 [3] R.
Tung: Physical Review B,Vol. 45(1991), No.23 [5] J.P.Sullivan, R.T.Tung and M.R.Pinto: Journal of Applied Physics Vol 70(1991), No.12 [6] R.Perez, N.Mestres, J.Montserrat, D.Tournier and P.Godignon: Physica Status Solidi(a) Vol. 202(2005), No.4, p.692-697 [7] F.
Raineri: Journal of applied Physics Vol. 93(2003),No.11 [8] A.Ferhat Hamida, Z.Ouennoughi, R.Weiss and H.Ryssel: Semicond.

Detected theory and way of drafting force were researched by Some scholars when theory of drafting force was being researched; in 1946, drafting force in the course of roving drafting of worsted spinning was obtained by Former Soviet technical science associate doctor Khrushchev[1]using specially designed equipment.
Table. 1 The relations between enveloped angle θ and roller center distance of back zone d d（mm） 45 47 48 50 53 54 56 58 60 62 θ 27.40 24.75 23.62 21.65 19.26 18.58 17.37 16.29 15.36 14.52 Test preparation Raw materials.
Raw material is 100% cotton, fiber linear density is 0.14tex，5% span fiber length is 33.96mm, effective length is 29.85mm, short fiber content under 12.7mm is 2.72%(W)，cotton neps is 15 grain/g Experiment condition.
Journal of Wuxi University of Light Indusrty.
Journal of Wuxi University of Light Indusrty.

Introduction Geotechnical widely exist in nature, and as a structural engineering application is the most common and most massive materials, because of its porous, heterogeneous and structural property,and under the action of load of its internal structure and mechanical properties of continuous change, make it become the constitutive relationship of geotechnical engineering circles problem.The constitutive model of rock and soil research has two major branches: one is the mechanics of continuous media, through its continuous medium mechanics phenomenological method and dissipative process of irreversible thermodynamics, materials on the macroscopic mechanical response, the material constitutive model;Another kind is the micromechanics, it through the soil microstructure and micro crack (void ) damage evolution process, study material deformation and damage the relationship between variables, derivation of the constitutive relation of material.Although both methods are different, but
The use hypothesis of Sidoroff[4] elastic energy equivalence,role of stress in the damaged material and nondestructive material complementary elastic energy is in the same form .For nondestructive geotechnical materials complementary elastic energy can be expressed as: (3) and for damage of geotechnical materials complementary elastic energy can be expressed as (4) (5) where is the flexibility matrix, the damage effective flexibility matrix, the elastic stiffness matrix, and the stiffness matrix for injury.
It can get the anisotropic damage constitutive relation of geotechnical materials for: (6) Considered ( soil layered transversely isotropic ) material, then reduced to transversely isotropic damage soil damage variable matrix [5], D1 = D2 = DH, D3 = DV.
Acknowledgements This work was financially supported by The National Natural Science Foundation of China (No. 50978129) References [1] Shen Zhu-Jiang.Theoretical soil mechanics [M].
International Journal of Fracture,1987,33,3-16 [4] Sidoroff F.

In AUTODYN, different materials should be defined in different invalidate modes[2].
Constitutive relation During the calculation process, the materials of both warhead and target simulation model should be Johnson-Cook model which has plastic and elastic attribute[5].
The parameter of warhead and target’s main material, and parameters of equation of state are in Table 1 and Table 2 (the parameters of materials are gained form reference materials and tests)： TABLE I.
International Journal of Engineering Science, 1978, 16 (1): 1-108 [2] Wu Y.
Proceedings of the 1995 International Conference on Metallurgical and Materials Applications of Shock-Wave and High-Strain-Rate Phenomena, 1995:337- 344 [3] Roessing, K.

Materials and Science Technology, 2013. 29(10): p. 1166-1173
Fatigue and Fracture of Engineering Materials and Structures, 1993. 16(9): p. 931-939
Journal of Alloys and Compounds, 2013. 577 S: p. 583-586
Fatigue and Fracture of Engineering Materials and Structures, 2014. 37: p. 1-28
Fatigue and Fracture of Engineering Materials and Structures, 1999. 22: p. 495-508.

Introduction Although the high hardness, compactness, and thermal resistance of metal binder make the metal bonded superabrasive tools successful in precision machining of hard brittle materials, such as advanced ceramics, glass and crystal, it cause difficulties in dressing [1-3].
Dressing principle of PSST In the PSST, the soluble fillers, which can be metal, metal oxide or non-metal oxide materials, are added in the metal binder.
Shin: International Journal of Machine Tools & Manufacture, Vol. 42/7 (2002), p. 825–835 [8] H.W.
Yao: Advanced Materials Research, Vol. 135 (2010), p. 398-403 [9] B.H.
Fan: Advanced Materials Research, Vol. 325 (2011), p.183-188

These out coming fibers increase the risk of overheating the surface of the natural fiber materials [11].
Figure 2: State of the art processing of NF/PP Materials Natural fiber nonwoven material.
NF nonwoven materials were impregnated both with pure AP as reference and additivated AP.
References [1] Monteiro SN, Felie PDL, Ferreira AS, Nascimento DCO , „Natural-Fiber Polymer-Matrix Composites: Cheaper, Tougher, and Environmentally Friendly,“ The Journal of The Minerals, Metals & Materials Society, Bd. 61, pp. 17-22, 2009
Journal of the Minerals, Metals & Materials Society 2006; 58: 80-86 [4] George J, Sreekala MS and Thomas S A review on interface modification and characterization of natural fiber reinforced plastic composites.

Current Situation High-speed Development of Building Materials Industry.
And other building materials and cement-related products also remain substantial growth.
Cement, brick and other building materials consume large amount of mineral resources.
Sustainable Construction Materials and Technologies.
Journal of Wuhan University of Technology-Materials Science Edition, 2009.5:834-837