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Experiment Materials.
References [1] G Liu, SH D Xun, N Vukmirovic, et al.Advanced materials, 2011,23,4679-4683
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Author introduction: Ying-hua YU(1965-),female, Ph.D., professor, doctoral supervisor, advanced manufacturing technology, mainly engaged in machinery manufacturing in the detection of automation and intelligence, performance and application of new materials.
:International Journal of Mechine Tools and MANUFACTURE.(2012) [3] Ying-hua YU,Xing-qiang Xu:Journal of Vibration and Shock.(2007).In Chinese
[5] Ming-zhang Li,Ying-hou Jiao:Journal of Harbin Institute of Technology(2006).In Chinese
[8] Ping Xu,Chun-liang Ma,Ying-hua YU:Journal of Machine Design(2009).In Chinese
[9] Ying-hua YU,Si-yu Chen,Chun-liang Ma:Journal of Machine Design(2010).In Chinese.

Recently, many researchers carried out investigation on the crack initiation and propagation in composite materials [2-3] or complex structures such as corner weld, gear root and tube plate [4-6].
The Young’s modulus of the weld material is 2.1×105MPa and the Poisson’s ratio is 0.25.
Elsevier Science Publishers BV; 1986 [2] Toru Ikeda, Masaki Nagai, Koh Yamanaga, Noriyuki Miyazaki: Engineering Fracture Mechanics Vol.73 (2006), p.2067 [3] K.
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Saxena: International Journal of Fatigue Vol.29 (2007), p.822 [11] D-A.Wang,J.Pan: International Journal of Solids and Structures Vol.42 (2005), p.6277.

The present traditonal fatigue crack propagation model is proposed by Paris and Erdogan, its basic form is: (1) Among which: · da/ dN stands for fatigue crack propagation ratio; · C and m are material constants about crack growth rate and can be obtained by small standard fatigue specimens, while value of the C and m of the common steel structure materials Q235, 16Mn have been obtained by experiment; · .
Research on Fatigue Crack Growth Life of Ultra-High Strength Steels in VHCF, Journal of Modular Machine Tool & Automatic Manufacturing Technique, 2011, 01: 5-8 (In Chinese) [2] Mark Anthony James .A Plane Stress Finite Element Model for Elastic-plastic Mode I-II Crack Growth, Kansas State University, 1998 [3] Yu Haifeng, Zhang Wenyuan, Zhang Yaochun.
Experiment and Numerical Simulation on Low-cycle Fatigue Behavior for Q235 Welded I-section Steel Bracing Members, Journal of Sichuan University(Engineering Science Edition), 2012, 02: 182-189 (In Chinese) [4] Ayhan A O．Mixed Mode Stress Intensity Factors for Deflected and Inclined Corner Cracks in Finite-thickness Plates．International Journal of Fatigue, 2007, 29: 305-317 [5] Nao-Aki Noda, Toshiaki Kihara, Daisuke Beppu.
International Journal of Fracture, 2004, (02), 127-129 (In Chinese) [6] Zhao Zhangyan, Sun Guozheng.
Faults Distribution of Port Cranes’ Metal Structure, Journal of Wuhan Transportation University, 1995, 12:679-680 (In Chinese)

Huazhong University of Science and Technology, Wuhan, China *yangbing@dfmc.com.cn Keywords: hot stamping; light-weight design; B-pillar reinforcement panel; CAE Abstract.
In this trend, in order to meet both lightweight and automotive crash safety requirements, new materials and new forming technologies are applied more and more.
Mechanical properties of these materials are listed in Table 2.
Journal of Materials Processing Technology, 2006, 177(1), 452-455 [4] Karbasian H. and Tekkaya A.
E., A review on hot stamping, Journal of Materials Processing Technology, vol. 210, no. 15, pp. 2103-2118, Nov. 2010.

Material and methods Strain and medium Thermomyces lanuginosus SD-21, a thermostable xylanase producer was used.
The wet material was autoclaved for 30 min. at 121°C.
Acknowledgments This work is financially supported by the Fund of Open Subject of Jiangsu Provincial Key Laboratory of Pulp and Paper Science and Technology (200901), China.
World Journal of Microbiology and Biotechnology ,2003,19（2）:195-198 [8] NAVARRETE-BOLANOS  J  L, JIMENEA-ISLAS  H, BOTELLO-ALVAREZ  E, et al.
World Journal of Microbiology and Biotechnology. 2001,17（7）:751-756.

Copper Pollution and Its Assessment of Roadside Soils in Suzhou City Yafen Han1, a, Qi Li 1,b 1School of Earth Sciences and Engineering, Suzhou University, Suzhou 234000, China aemail: hanyafen2008@163.com, bemail:liqi821113@163.com Keywords: Copper pollution; Roadside soil; Geo-accumulation index; Suzhou City Abstract.
Thus this study of copper pollution in Urban Soils and the assessment environmental risk have important practical significance in Suzhou city. 2 Materials and methods 2.1 Sample collection Against road traffic features of Suzhou city, samples are selected in the roadside soil from the four directions: north to south and west to east main streets of Suzhou.
Chinese Journal of Soil Science, 2008, 39( 5): 1210-1216.
Geochemical Journal, 1969, 2(3): 108－118
Journal of Chifeng University, 2012, 28(3): 110-113.

Figure 1 The natural status of Thymus monoglicus Ronn Experiment Plant Material.
Yu, Food Science Technology, 10, 260 (2006)
Douglas, Journal of Natural Product, 66, 865 (2003)
Lu, Journal of Chinese Mass Spectrum, Society, 25(1), 61(2004)
Yu, Chinese Food Science, 26(8): 281 (2005)

The material of gear is cast steel, which elastic modulus E is 207GPa, Poisson's ratio μ is 0.3, and density ρ is 7800kg/m3, smart grid division approach is used to mesh the model, and meshing refinement is built around the crack.
Beijing: Science Press, 1997.
(In Chinese) [2] Chengyun YANG，Tengjiao LIN，Runfang LI．Journal of Chongqing University: Natural Science Edition,2002,25(2) : 15-18．
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ASME Journal of International Power Transmission and Gearing Conference,1992(1);1-9 [6] Tavakoli M S, Houser.D.R Optimum profile Modifications for the Minimize-lion of Static Transmission Errors of Spur Gears[J].

The temperature of forming window is varied with the structure of the final output and the properties of the used materials.
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