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It is clear that with a protrusion, the filling ratio is much better, due to the pre-distribution of material.
The velocity vector points to the housing wall, which implies that the material flows partially to the housing wall.
To avoid this problem, R9 is designed to a smaller one in first sizing, which can increase the back flow resistance of material and make more material flow into small fillets.
Acknowledgement The authors would like to express our gratitude to the support by special fund of Jiangsu Province for Transformation of Scientific and Technological Achievements, and National Natural Science Foundation of China (No. 50975175) for the financial support to this study.
Liu, Study on liquid bulge forming small tangential round corner of automobile axle housings, Journal of plasticity engineering. 8(2001) 36-39 (in Chinese)

Effect of UHMWPE Fiber Laminate on Effective Protection Area of Ceramic Composite Target Song Gaoa, Bin Chenb, * College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, China agaosong310035@163.com, bchenbin_gfkd@sina.com Keywords: UHMWPE, Fiber Laminate, Ceramic Composite Target.
Material model.
The corresponding material parameters are shown in Table 2, 3, 4, and 5 respectively.
Material parameters of aluminum, core and lead sleeve [6] Material ρ/(kg· m-3) E/GPa Et/MPa β fs aluminum 2700 70 0.3 330 730 1 0.7 core 7850 210 0.29 1200 2000 1 0.3 lead sleeve 11340 16 0.42 20 0 1 0.5 Table 4.
Journal of Ballistics, 2018, 30(3): 67-72

The relationship between of CT number and volumetric strain When X-ray transmitting material, the intensity of X-ray obeys the following equation. )exp(0 x II mρµ−= (1) Where, 0I and I are incident intensity and the transmitted through material intensity of X-ray respectively, mµ is the absorption value per unit mass of material, ρis the volumetric density and x is the path length of radiation beams.
In fact, rather the damping per unit length of the transverse material is used and related to the medical scale expressed in Hounsfield-Units.
Fatigue and Creep Crack Growth in Fine Sand Asphalt Materials.
Journal of Testing and Evaluation, Vol. 25, No. 4, 1997, p. 424-428 [2] Yang Gengshe, Zhang Changqing.
Xi'an: Shanxi Science and Technology Press, 1998, p.79-90.

Ever before, clay is often taken as the material of the core of earth rockfill dam.
More and more construction experiences in China and abroad show that it is a trend to use gravelly soil as core material in high earth rockfill dam [1].
Although many scholars and engineers paid attention to the gravelly soil as core material recently [2,3,4,5], few of them were on the behavior for soils with different percentages of gravel by triaxial test.
Test materials and methods The tested material in this paper is a cohesive soil mixing with gravel, and the cohesive soil and gravel were taken from the site of Shuangjiangkou earth rockfill dam to be constructed in western China.
Acknowledgements This work was financially supported by the National Nature Science Foundation of China(No. 50825901) and the Ministry of Water Resources of China(No.200801133).

However, each approach also has limitations either in capability for higher aspect ratio features, material compatibility or cost.
Advanced polymer materials that are effective in preventing pattern collapse during wafer cleaning, suitable for removal by dry ashing processes, both plasma and thermal, are presented.
The ability to remove sacrificial polymer fill material from the wafer pattern without using dry plasma ashing is advantageous when surface damage or material compatibility is a concern.
A key property of thermally activated materials considered for pattern collapse prevention include phase change properties that allow the polymer to be cured and stable within one temperature range while completely degradable in a second temperature range.
[6] Vereecke G., Xu X.M., Tsai W.K., et al., “Partial wetting of aqueous solutions on high aspect ratio nanopillars with hydrophilic surface finish”, ECS Journal of Solid State Science and Technology; 3(1), 3095–3100, (2014)

Mechanism of Diamond Wire Saw Slicing SiCp-Al Composites SiCp/Al composites are a kind of two-phase materials with Al matrix and SiC reinforced particles.
The machining way of diamond wire saw slicing SiCp-Al composites is different from that of diamond wire saw slicing ordinary single elastic-plastic material.
This is because that workpiece feed speed increases, the material removal rate increases. 
The Fourteenth National Conference on Composites Materials, 2006.10,p.1099-1103.
Journal of Shenyang University of Technology. 2012，34(6),p.665-670.

Smart Structure Based on Continuous Optical Fiber Sensing Technique (Review) Wencheng Jin 1, a, Juan Wan 1, 2, b, Qingrong Ding 3,c and Changdong Zhou 4,d 1 Huazhong University of Science and Technology, Wuhan, China 2 Hubei University of Technology, Wuhan, China 3 Yichang Urban Highway Administration, Hubei, China 4 Yichang Urban Transport Bureau, Hubei, China a86783546@qq.com, bjuanjuanwan@sohu.com, c87557610@163.com, d16904973@qq.com Keywords: smart structure, continuous optical fiber, sensing technique Abstract.
Thus, structural long term real-time dynamic monitoring is promising. 5 Realization of self-adapting function Action technique is the nucleus problem that the smart structure carries out adaptive variation of shape or mechanics performance .In the smart structure, It is the main content to be solved to discover the right action material, to integrate sensing material with action material in the structure so as to fulfill the self-repair function.
,A.Del Grosso, Fiber Optic Sensing Technologies for Smart Materials and Structures ,World Forum on Smart Materials and Structures, Chongquing&Nanjing (2007)
Theoretical modeling of signal loss versus crack opening for a novel crack sensor .Journal of Engineering Mechanics,2005,131(8):777-790

Modulus of Rupture Test and Numerical Fitting of Plybamboo Form Bengui Li1,a , Yunshui Yu 2,b, Junmin Chen 3,c, Liang Peng4,d , Weihong Zhou2,e 1 Department of Laboratory Construction and Assets Management, Central South University of Forestry & Technology, Changsha 410004, P.R.China a 2 Department of Materials Science and Engineering, Central South University of Forestry & Technology, Changsha 410004, P.R.Chin 3 Dongfeng Visteon (Shiyan) Automotive Trim Systems Co., Ltd, Shiyan 442012, P.R.China 4 Hunan Academy of Forestry, Changsha 410004, P.R.China alibengui502@163.com, byuyunshui@sina.com, cchenjunmin@dfl.com.cn, dpengliang10@sina.cn, ezhouweihong2005@163.com Keywords: modulus of rupture; plybamboo form; moisture content; numerical fitting; regression equation Abstract.
Experimental Material.
FSP of plybamboo form is 23.27% and 22.89% respectively obtained by the method of regression analysis from longitudinal and transverse MOR tests, which is lower than that of the raw material of bamboo (30%).
Li: New Construction Material In Chinese.11(2000), p.11-13 [4] J.P.
Jin: Journal of Bamboo Research In Chinese. 15(1996), p. 45-52

Metal flow rule of multi-way tube hydro forming for air handling unit Huadian WEN a, Xiaoting XIAO , Kai ZHANG and Ying CHEN Faculty of Material and Energy Guangdong University of Technology Guangzhou 510006 ，China aemail：whd2016@yahoo.cn Key words: hydro forming; multi-way tube; law of metal flow; numerical simulation Abstract.
Material model .The Material is pure copper, and its parameters are as follows: The diameter is 12mm; the length is 250mm; the thickness is 1mm; the mass density is 8.900000e-009; the Young's modulus is 1.198000e+005; the Poisson's ratio is 3.100000e-001 and its Stress-strain curve is showed in figure 3: Filling zone between tubes Forming zone End filling zone Fig.3 Stress-Strain Curve of copper Fig.5: Typical nodes position Boundary conditions.
Acknowledgements The authors would like to thank the National Natural Science Foundation of China(Granted No.U0934006)for funding this research.
[4] Zhang, S: Journal of Materials Processing Technology, Vol 91(1999), p236-244
[5] Wang Xiu-feng, Lang Li-hui: CAE design and application in Sheet metal forming (Beijing University Of Aeronautics And Astronautics Press, Beijing 2008) [6] Liu Quan-kun: Material forming basic principle (Mechanical Industry Press，Beijing:2005) [7] Fan Si-jian: Modern Hydro forming Technology(Defense Industry Press ,Beijing 2009)

Research on Fault Diagnosis and Application for Rolling Element Bearing Based on Fuzzy Analysis Xiaoguang yu 1, a, Jian liu 1,b 1 School of Mechanical Engineering and Automation, University of Science and Technology Liaoning, Anshan, China, 114051 ayuxiaoguang58@163.com, bliujianpeter2015@yahoo.com.cn Keywords: Rolling Element Bearing; Fault Diagnosis; Variation Signal; Fuzzy Theory Abstract.
After a large number of material and testing data showed that the following parameters could be regarded as characteristic values of time domain diagnoses: l Effective value l Peak value l Kurtosis value l Margin value l Skew value 2.2 Frequency domain parameter extraction [3] [4] In this article, we used following characteristic quantity to describe power spectrum and its changes l Gravity frequency of power spectrum l Power spectrum variance l Mean square frequency The application of fuzzy theory in rolling bearing faults diagnoses 3.1 The theory and model of fuzzy logic faults diagnosis We try to setup fuzzy relation matrix between faults and symptoms before diagnoses.
Its definition is as following: The detailed way of defined membership is to set value to symptom parameter subjectively, which is based on fault level of bearing at every collecting point and past experience and reference material.
References [1] J Mathew and R J Alfredson．The Condition Monitoring of Rolling Element Bearing Using Vibration Analysis．ASME J．Vib Acoust stress Reliab Des，1984，106（12）：447～453 [2] Su Y T，Lin S T．On Initial Fault Detection of a Tapered Roller Bearing．Journal of Sound and Vibration，1992，155（1）：75～84 [3] J．Shiroishi，Bearing Condition Diagnostics via Vibration and Acoustic Emission Measurements．Mechanical Systems and signal Processing，1997，11（5）：639～705 [4] W J Staszewski，K Worden and G R Tomlinson．Time-Frequency analysis in gearbox fault detection using the Wigner-Ville distribution and pattern recognition．Mechanical Systems and Signal Processing，1997，11（5）：673～692