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Materials Science and Engineering A, 2001, 302: 37-45
Materials Science Forum, 2003, 419-422(1): 57-66
Frontier Materials Science of China, 2008, 2(1): 1-8
Journal of Materials Science, 2008, 43: 6952-6959
Materials Science and Engineering A, 2006, 428: 295-300

The material properties of some specimens in Long et al.[18] are listed in Table 1.
Acknowledgements This research was supported by National Natural Science Foundation of China (Grant No.51008085) and National Natural Science Foundation of China (Grant No.51108095).
[4] Uy B: Journal of Constructional Steel Research, Vol. 57 (2001), p. 114-134
[5] Han L-H:Journal of Constructional Steel Research, Vol. 58 (2002), p. 353-372
[21] Han L.H: Concrete-filled steel tubular structures: Theory and practice (China Science Press, Beijing 2007), in Chinese.

It is also find that there is no obvious influence on settlement of pipeline with different materials of pipeline.
Physical and mechanical parameters of materials materials weight /kN.m-3 E0/MPa v c/kPa φ/(0) clay 19.0 18.0 0.33 19.0 26.0 cast iron pipeline 78.0 9.0×104 0.275 steel pipeline 78.5 2.06×105 0.30 Concrete pipeline 25.0 2.5×104 0.17 PVC pipeline 15.0 2.26×103 0.35 The depth of groundwater level is 1.0 m under the ground.
Different materials of pipeline can be considered, the physical and mechanical parameters of materials are showed in table 1.
China Railway Science, vol.26(2006), p. 117-123.
Journal of Shangdong Agricultural University (Natural Science), vol.35(2004), p.593-596.

Leyendecker, Journal of Vacuum Science & Technology a-Vacuum Surfaces and Films 5 (1987) 2173-2179
MetikosHukovic, Journal of Vacuum Science & Technology a-Vacuum Surfaces and Films 14 (1996) 2527-2534
Robertson, Materials Science & Engineering R-Reports 37 (2002) 129-281
Luthje, Materials Science and Technology 23 (2007) 362-367
Grill, Diamond and Related Materials 12 (2003) 166-170

Introduction Left-hand materials (LHM) or negative refractive medium is a new type of artificial electromagnetic materials developed in recent years [1].
Because of the different dielectric constants and the permeability of left-hand materials(LHM) are related to the parameters of S11 and S21.
Hung: Submitted to Journal of MicroWaves (2004)
Wu: Submitted to Chinese Journal of Radio Science (2006)
Lv: Submitted to Journal of Micro Waves (2007)

References [1] Z Pater: Journal of Materials Processing Technology.
[6] L Hua, D S Qian, L B Pan: Journal of Materials Processing Technology.
[7] L Hua, Z Z Zhao: Journal of Materials Processing Technology.
Hua: Journal of Materials Processing Technology.
[11] Q X Xia, S W Xie, Y L Huo: Journal of Materials Processing Technology.

Propagating and Reconstructing Cracks in 3D in Cement-based Materials Guanguo Liu 1,2,a, Aibin Ma 1,b, Honggen Qin3,c, Ping Zhang3,d 1 College of Mechanics and Materials, Hohai University, Nanjing 210098, China 2 Jiangsu Transportation Institute Co., Ltd., Key Laboratory of Large-span Bridge Health Inspection & Diagnosis Technology Ministry of Communications, Nanjing 211112, China 3 School of Materials Science and Engineering, Jiangsu Key Laboratory of Civil Engineering Material, Southeast University, Nanjing, 211189, China algg@jstri.com,b aibin-ma@hhu.edu.cn, c qinhonggen@126.com, dzhangpingseu@163.com Keywords: X-CT; Cracks;Three-dimensional reconstruction; Quantitative calculation Abstract: Three-dimensional reconstruction and quantitative calculation were performed by X-ray computerized tomography to propagate cracks in paste, mortar, and concrete specimens.
Introduction Controlling cracks in concrete structures has been a research emphasis in structural engineering and materials science for many years.
Raw materials and mix proportion Approximately 40 mm was cut from the head of a cylinder after a certain period.
Chob L.C.Wang The relationship between pore structure and chloride diffusivity from ponding test in cement-based materials Materials Chemistry and Physics 2005.11
Computed tomography technology for microstructural studying on cement-based materials: a review on the state of the art[J].Journal of the Chinese Ceramic Society，2010,38（7）：1346-1356

The traditional robots use rigid materials for structural elements and actuators, which limit their ability to adapt to the surrounding environment.
Different hyper elastic rubber materials were attempted in the above researches and finite element analysis (FEA) was also done.
The non-linear material model is the one need to be used for characterizing hyper elastic materials.
Non-linear Material model The hyper elastic materials have large strains and must be characterized by finite deformation theory.
[11] M.Mooney, A Theory of Large Elastic Deformation: Journal of Applied Physics Vol. 11(9) (1940), pp. 582-591

HPW/CdS composite materials were prepared by impregnation method.
By comparing the IR spectra of composite materials with simplex sample of HPW and CdS.
The composite materials show the better photocatalytic activity than others.
The recycling studies of composite materials are still going on.
Guo, et al., Journal of Molecular Catalysis A, 225 (2004) 203- 212.

When an amplitude of temperature reduction is high, the tensile stress of elasticity materials may be larger, so repair materials should have ductility and elastoplasticity materials are considerable.
Materials' adhesive strength is1.5 MPa.With the width of the crack increased, the plastic of the repair materials we need decreased, so we mainly focus on the elastoplastic performance of repair materials when cracks' widths are small.
Using the perfusion method to repair, the elongation of the materials should reach 171.5% when the elasticity modulus of material is 100MPa.the elongation of the materials should reach 165.4% when the elasticity modulus of material is 300MPa.
Journal of Railway Science and Engineering.2011:8(1),20-23.In Chinese
Journal of Southwest Jiaotong University.2010:45(1),34-45.In Chinese.