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Consequently, plasticity can be neglected when modeling brittle materials such composite materials.
In Hashin criterion [4], lamina properties are assigned and undamaged materials responses to other orthotropic materials planes.
Springer, Strength of Mechanically Fastened Composite Joints, Journal Composite Materials. 16 (1982) 470-494
Rotem, A Fatigue Failure Criterion for Fibre Reinforced Materials, J.
Composite Materials. 7 (1973) pp. 448-464.

Advanced Materials Research, 2010(160-162): 241-246
MATERIALS CHINA Vol.30(2011),p.40
Residual stress III: Science and Technology.
London and New York: Elsevier Science Publishers Vol. 1992,p.1140
Journal of Materials Processing Technology Vol.189(2007), p.45.

Introduction Magnesium alloys are the lightest structural materials with specific strength (strength-to-weight ratio) exceeding those of many steels and aluminum alloys.
Therefore, Mg and its alloys are gaining interest in many industrial and research communities for structural materials that can potentially meet the high demand for low fuel-consumption.
Tome´, International Journal of Plasticity, 24 (2008) 867-895
Mathaudhu, Materials Science and Engineering A, 528 (2011) 7616-7627
Pötzsch, Materials Science and Engineering A, 324 (2002) 145-150

International Journal of Fatigue.32 (2010),p.808–814
Momeni.Effect of hot working on flow behavior of Ti-6Al-4V alloy in single phase and two phase regions[J].Materials and Design.31(2010):p.3599~3604
Materials Science and Engineering A. 515 (2009), p.43–48
[8] Jong Taek Yeoma, Jeoung Han Kima, Nho Kwang Park.Ring-rolling design for a large-scale ring product of Ti-6Al-4V alloy[J].Materials Processing Technology.187(2007) ,p.747-751
Rare Metal Materials and Engineering.1(2012),p.0014-0018

Baumana, Faculty of Robotics and Integrated Automation, Mechanism and Machine Science department 3Mechanical Engineering Research Institute of the Russian Academy of Sciences, 4 Maliy Kharitonyevcky pereulok, Moscow, Russia.
It is assumed that due to the hydrogen diffusion material’s strength parameters are changing locally to the defect.
To describe analytically such impact authors propose a dependency between materials CFT KIc and average hydrogen concentration taken near the crack tip in the specifically chosen prerupture area: A={x∈[0;ai]}.
Thus KIc tend to decrease as the hydrogen diffusion proceeds and its dependency on the prerupture area average concentration Cat=ACx,tdx is defined as follows: KIc-KIc*KIc0-KIc*α1+ΩCa(t)C0β1=1, (5) where α1,β1 are parameters; KIc0,KIc* are materials CFT’s for non-hydrogenated and supersaturated material respectively; Ω=C0/C* is a compound characteristic of material-environment pair, where C* is material’s limiting solubility of hydrogen.
[4] Romanov, A.N., Tarakanov, P.V., Shashurin, G.V.: Engineering model of crack development in metals and alloys under corrosive hydrogenous media, In: Journal of Machinery Manufacture and Reliability, 43 No. 6 (2014) p. 503-507

Introduction With higher demands on performance and quality of steel materials, the traditional concepts of steel production, operation and management thinking are facing serious challenges brought by technological innovation.
With the development of research in the field of physical metallurgy of materials, it is possible to establish equations to describe of these physical metallurgical phenomena during the thermo mechanical treatment of steel[3-7].
Materials and Experimental The 72AU2 steel after preheated in a heating furnace has gone through rough rolling, finish rolling, laminar cooling, and the coiling process.
Zhou, Temperature analysis of hot rolled coil during cooling, Journal of Iron and Steel Research, 8(2009) 13-16
Marangoni, et al., Modeling the collapse of coiled material, Finite Elements in Analysis and Design, 38(2002) 521-535

Journal of Fluids and Structures, 1999. 13(7): p. 813-851
Koushan, K., Vortex induced vibrations of free span pipelines, in Ph.D. thesis in Norwegian University of Science and Technology. 2009, Linköping
Journal of Sound and Vibration, 2005. 282(3): p. 575-616
International Journal of Offshore and Polar Engineering, 1995. 5(2)
International Journal of Computers, 2008. 2(1): p. 39-46.

Microstructure and Properties of Resin-Based Pyrocarbon with Micro-Nano Structure Carbon and TiO2 as Additives Yufei Xiaa, Xiaowen Wub, Yangai Liu, Minghao Fang and Zhaohui Huang School of Materials Science and Technology, China University of Geosciences, Beijing 100083, China axiayufei829@163.com,b xwwu@cugb.edu.cn (Corresponding author) Keywords: Resin-based pyrocarbon; mechanical properties; oxidation resistance; additives Abstract.
Oxidation experiment at 500°C results show that add boric acid against oxidation resistance of resin carbon materials, without boric acid resin carbon the burning loss rate is only 40% of the sample.
Therefore, composite materials has the highest compressive strength when only added graphite micro chip, and on the basis of adding graphite micro chip add TiO2, boric acid or carbon black will make material compressive strength have different degrees of decline.
References [1] Zhao L, Cobalt oxide sol composite phenolic resin pyrolysis carbon structure change, Journal of Functional Polymers. 3(2012)3-7
[4] Zhu JG, Xu SJ, Solution of carbon research, Progress in Materials Science. 4(1988)35-40

Materials and methods Botrytis Spp was separated from the soil of the wheat fields July 2012.
Chinese Journal of Biological Control, 2004,20(2):91-94
China Tobacco Science, 2005, l1 (6) :33-36 .21 (4) :265-268
Chinese Academy of Agricultural Sciences, PhD thesis, 2006 [7] Qiu D,Clayton K.Messenger enhances plant biomass accumulation.
Xinjiang Normal University (Natural Science), 2005,24 (4) :65-68

An adaptive Topic Crawler for electronic public opinion Jin Fan1,a, Xian-kun Zhang1,b, Xue Tian1, Dong liu2 1College of Computer Science and Information Technology Tianjin University of Science and Technology.
Tianjin, 300222, China 2College of Computer Science and Information Technology Henan Normal University.
No.12ZXCXGX3500, and Natural Science Research Projects of the Education Department Henan Province.
Journal of Information and Computational Science, ”vol.8,no.7,pp. 1113-1121, 2011
[9] Junya Yan,Xiaohui Ma, “Near replicas of Web Pages Eliminating Repetitive Algorithms Based on MD5,” Advanced Materials Research, pp.1752- 1756, 2012