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Chemical engineering journal, 218, 65-72
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 361(1-3), 162-168
Colloids and Surfaces A: Physicochemical and Engineering Aspects, 294(1-3), 102-110
Quarterly Journal of Engineering Geology and Hydrogeology, 47(2), 177-187
Materials & Design, 114, 364-372

Buckling Analysis of Double-Limb Lipped Channel Section Member under Axial Load Qing Ma 1, a, Jinsong Lei 1,2,b, Wenzhi Yin1,c 1College of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang 621010,Sichuan, China; 2College of Civil Engineering, Hunan University, Changsha 410082, Hunan, China amaqing1028@hotmail.com, bleijinsong2003@163.com, clzqfzhw@sina.com Key words: Double-Limb Lipped Channel Section; Geometrical Parameters; Buckling Performance; Ultimate Bearing Capacity Abstract: Double-limb lipped channel section steel member is formed by connecting two single limb members with bolts in order to improve the buckling performance.
Modeling of finite element Selection of element and constitutive relation of material.
The steel material is the common Q235 whose elastic modulus is 2.06×105MPa and Poisson's ratio is 0.3.
On the basis of already noted modeling way, and under the condition of insuring material and constraint, the buckling forms are researched by changing the section size and slenderness ratio which is to weak axis.
[2] Xinmin Wang, ANSYS Numerical Analysis of Engineering Structure, Peking: Renmin Communication Press, 2007(in Chinese)

S1=(0.092,0.139,0.219) S2=(0.038,0.060,0.113) S3=(0.151,0.199,0.327) S4=(0.019,0.026,0.038) S5=(0.112,0.177,0.287) S6=(0.177,0.274,0.423) S7=(0.060,0.123,0.202) W=（0.145,0.065,0.319,0.027,0.185,0.283,0.126） Table 2 Subway construction project risk assessment indicator system Subway construction project risk assessment indicator system Criterion level （first class indicators） Project level （secondary indicators） Natural risk U1 Underground soil U11 Groundwater U12 Bad weather U13 Surrounding environment U2 Nearby building U21 Pavement subsidence U22 Pipeline destruction U23 Quality risk U3 Scheme selection U31 Construction method U32 Construction team U33 Monitoring and testing U34 Building material U35 Construction machinery U36 Schedule risk U4 Reasonable schedule U41 Construction condition U42 Fund supply U43 Management level U44 Material supply U45 Force majeure U46 Cost risk U5 Labor cost U51 Material price U52 Technical level U53 Increase in tax rate U54 InflationU55 Design
Underground Space and Engineering, 2008,4 (5) (In Chinese) [2] Du Gang.
Systems Engineering Methods and Applications [M].
Triangle fuzzy supplementary judgment matrix sorting one practice means [J]. systems engineering, 2002,20(2) (In Chinese) [5] Li Jinliang, Ding Xuelong.
Industrial Engineering and Management, 2009(1) (In Chinese)

The table 2 provides the mechanical properties of the three materials involved in the tests.
For both materials the contact surface enlarges with increasing cycle number, impact pressure and sliding velocity.
Berns, Effect of surface work hardening on wear behavior of Hadfield steel, Materials Science and Engineering A 420 (2006) 47–54 [9] Yuri N.
Xu, Effect of work hardening on wear behaviour of Hadfield steel, Materials Science and Engineering.
Berns, Corrosion-resistant analogue of Hadfield steel, Materials Science and Engineering A 420 (2006) 47–54 [12] Weilin Yan, Liang Fang, Kun Suna, Yunhua Xu, Surface structure of stainless and Hadfield steel after impact wear, Materials Science and Engineering A 460–461 (2007) 542–549 [13] W.R.

Specimen Design for IFSS Measurement in Fiber Pullout Test Ying Dai1, a, Xing Ji1, b, Lin Ye 2 and Yiu-Wing Mai2, c 1 Key Laboratory for Solid Mechanics, School of Aerospace Engineering and Applied Mechanics, Tongji University, Shanghai 200092, China 2 Centre of Advanced Materials Technology (CAMT), School of Aerospace, Mechanical and Mechatronic Engineering J07, the University of Sydney, NSW 2006, Australia a myingdai@yahoo.com.cn, bxingji1@sh163.net, cMai@aeromech.usyd.edu.au Keywords: Pullout test, Conic pullout specimen, IFSS, Interface, Stress singularity.
Introduction Since fiber-matrix interface plays a main function of stress transfer from the matrix to the fiber in composite materials, the mechanical performance of many fiber composites depends greatly on the properties of the interface.
Mai: Engineered Interfaces in Fiber-Reinforced Composites (Elsevier, Oxford, 1998) [4] Y.

Effect of admixture on the frost resistance of steam-curing concrete Hongfei Liu1, a ， Xianwei Ma2,b ，Fajun Huang1,c 1College of civil engineering , Jiaxing University Yuexiunan Road 56,Jia xing city, Zhe jiang Province, China, Zip 314001 2Henan University of Urban Construction, Pingdingshan, Henan Province, China, 467036 a lhf622@126.com, b feitian7799@163.com, c newhfj@163.com Keywords: Steam-curing concrete, Frost resistance(freezing-thawing resistance),Admixture, Polycarboxylate superplasticizers, Naphthalene-based superplasticizers, Air-entraining agent.
Experiment Materials.
Cement: Normal portland cement with type of P.O and grade 52.5 produced by Zhejiang Jiaxing YaYa cement plant, and its properties are shown in table 1; Fine aggregate: Natural river sand with soil content of 2.0%, fineness modulus of 2.6; Coarse aggregate: 5~25mm crushed stone with soil content of 0.4% Admixture: (1) Polycarboxylate superplasticizer: SUNBO PC-1016 produced by Suzhou Xingbang chemical building materials limited company.
[8] Z.G.Deng,J.Y.Li, etc .in:Research and application on the durability of key project concrete, edtied by Y.L.WANG, Y.YAO, Beijing: Chinese building industry press, (2001),299-336 [9] POWERS T.C: ACI Materials Journal,47(1975). p.70-75
[10 MICHEL P,JACQUES M，RICHARD P: Construction and Building Materials.10(1996), p.339-348

Effect of Copoly(Ester-Amide 6)(PET-PA6) on Compatibility of PET/PA6 Blended Fibers Yukun Shi1,a, Jinlong Xu2, Songlin Wang2, Shenglin Yang1, Junhong Jin1, Guang Li1,b* 1State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Colledge of Materials Science and Engineering, Donghua University, Shanghai 201620, China 2Zhejiang Hengyi High-tech Materials Co., Ltd.
Experiment Materials.
PET and PA6 were provided by Zhejiang Hengyi High-tech Materials Co., Ltd.

Introduction GaN, III-V group compound, is a direct wide band gap semiconductor material.
Pure GaN emit ultraviolet light and rare earth element doped GaN not only makes the luminescence range from ultraviolet to infrared wavelengths, but also can effectively reduce the thermal quenching effect, improve the efficiency of luminescence of dopant materials[5].
Recently, related scholars at home and abroad for rare element doped GaN semiconductor materials to do a lot of research[6-8].
Wahl, et al., Materials Science and Engineering: B, 105 (2003) 97-100
Karthikeyan, et al., Materials Research Bulletin, 48 (2013) 3707-3712.

Study on Microstructure of Nano-zirconia Coating by Atmospheric Plasma Spraying Ying Chang 1, a, Qin-biao Zhu 1, b *, Shi-jie Dong 2, c, Hui-hu Wang 2, d and Kuan-he Du1, e 1Department of Materials, School of Chemical and Environment Engineering, Hubei University of Technology, Wuhan, Hubei 430068, China 2School of Mechanism, Hubei University of Technology, Wuhan, Hubei 430068, China acy0025@126.com, bzhuqinbiao1@163.com, cdongsjsj@163.com, dwanghuihu@126.com, edukuanhe@qq.com * Corresponding author Keywords: Microstructure, Zirconia coating, Atmospheric plasma spraying.
Therefore, it is expected to become a new generation of thermal barrier coating materials.
In order to minimize the thermal expansion performance difference between substrate material and zirconia ceramic material, a 150um metal transition layer (bonding layer) was sprayed between the substrate material and the ceramic material.
Acknowledgement Foundation item: Project(51004046)supported by the National Natural Science Foundation of China; Project(51075129) supported by the National Natural Science Foundation of China; Project(2010CB635107)supported by the State Key Development Program for Basic Research of China Project(2010CDB05806)supported by the National Natural Science Foundation of Hubei province of China; References [1] R.E.
Skandan, Thermal spray processing of nanoscale materials, Nanostruct.

Effect of second phase particles on the tensile instability of a nanostructured Al-1%Si alloy Tianlin Huang1,a, Guilin Wu1,b, Qing Liu1,c, Xiaoxu Huang2,d 1College of Materials Science and Engineering, Chongqing University, Chongqing 400045, P.
China 2Danish-Chinese Center for Nanometals, Section for Materials Science and Advanced Characterization, Department of Wind Energy, Technical University of Denmark, Risø Campus, DK-4000 Roskilde, Denmark ahuangtl@cqu.edu.cn，bwugl@cqu.edu.cn, cqingliu@cqu.edu.cn, dxihu@dtu.dk Key words: Nanostructured Al alloy; Second phase particles; Tensile instability; Ductility.
This enhanced tensile instability is manifested in a more rapid drop of flow stress after necking and a further decrease of both uniform and post-necking elongation as compared with the as-processed material.
High purity Al (99.9996%) was used as the matrix material and the addition of 1%Si was to form Si particles as the solubility of Si in Al is almost zero at room temperature.
Benson, Mechanical properties of nanocrystalline materials, Prog.