Search results

Prolonging occurrence time of rebar corrosion in reinforced concrete structures could be achieved by increasing the thickness of cover, decreasing the ratio of water and cement materials, applying the polymer concrete or mortar, epoxy-resin coating bars or adding anti-corrosion admixture[2].
Here, in order to simplifying the analytical procedure, some assumptions have been applied: (1) UHTCC is considered as isotropic material, and its tensile stress-strain relation fits the one of elastic-perfectly plastic material (see Fig.2 (c)).
a b c Fig.2 Ideal tensile stress-strain curves of materials (a.
Acknowledgement The authors express their gratitude for financial support from the National Natural Science Foundation of China (50972109).
References [1] Weyers R E: ACI Mater J Vol. 95 (1998), p. 445-453 [2] Andrade C, Alonso C and Molina F J: Mater Struct Vol. 26(1993), p. 453-464 [3] Li V C, Leung C K Y: ASCE J Eng Mech Vol. 188(1992), p. 2246-2264 [4] Xu S, Li H: China Civil Engineering Journal Vol. 41(2008), p. 45-60 [5] Xu S, Li Q: Science in China Series E: Technological Science Vol. 52(2009), p.363-378 [6] Bhargava K, Ghosh A K, Mori Y et al.

DEFORMATION BEHAVIOR OF MAGNESIUM SINGLE CRYSTALS IN C-AXIS COMPRESSION Takaaki Kitahara1,a, Shinji Ando2,b , Masayuki Tsushida2,c, Hiromoto Kitahara2,d , Hideki Tonda2,e 1 Graduate Student, Graduate School of Science and Technology, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan 2 Department of Materials Science and Engineering, Kumamoto University, 2-39-1 Kurokami, Kumamoto 860-8555, Japan a 066d8409@stud.kumamoto-u.ac.jp, bshinji@kumamoto-u.ac.jp, ctsushida@tech.eng.kumamoto-u.ac.jp, d kitahara@msre.kumamoto-u.ac.jp, etonda@msre.kumamoto-u.ac.jp Keywords: magnesium; compression; yield stress; single crystal Abstract.
Introduction Recently, magnesium is interested as structured material because of its lowest density and high specific strength.
Agnew: Materials Science and Engineering: A, In Press, Corrected Proof, Available online 16 October 2006
[8]H.Yoshinaga,T.Obara and S.Morozumi:Materials Science and Eng,12(1973)p.255-264
[9]J.Koike,T.Miyamura:Journal of Japan Institute of Metals, Vol.54,No.11(2004),p.460-464.

Talking about the case of an aircraft, the dosage of composite materials has increased from the total weight of 2% ~ 3% to 10% ~ 15%.
A large number of composite materials has been used in demanding products such as planes and spacecraft, which is attributed to their rising awareness on properties of composite material [1].
Sometimes it causes some parts dissatisfy the strength requirement and obliterates the superiority of the composite materials.
Zhu: Journal of Najing University of Aeronautics & Astronautics, Vol. 41 (2009), p. 302 [3] J.
Deng: Science Technology and Engineering, Vol.11 (2011), p.1527 [5] Y.L.

[7] Charit I, Mishra R S, High strain rate superplasticity in a commercial 2024 Al alloy via friction stir processing, Materials Science and Engineering: A, 2003, 359(1): 290-296
[8] Liu F C, Xiao B L, Wang K, et al., Investigation of superplasticity in friction stir processed 2219Al alloy, Materials Science and Engineering: A, 2010, 527(16): 4191-4196
[9] Yadav D, Bauri R, Effect of friction stir processing on microstructure and mechanical properties of aluminium, Materials Science and Engineering: A, 2012, 539: 85-92
[12] Charit I, Mishra R S, High strain rate superplasticity in a commercial 2024 Al alloy via friction stir processing, Materials Science and Engineering: A, 2003, 359(1): 290-296
[13] Ma Z Y, Mishra R S, Mahoney M W, et al., High strain rate superplasticity in friction stir processed Al–Mg–Zr alloy, Materials Science and Engineering: A, 2003, 351(1): 148-153

A Supply Chain is a “series of activities which are concerned with the planning, co-ordination and controlling of materials and finished goods from the supplier to the consumer”. [3] Nonetheless, as its definitions suggest [4], the (SCs) are generally complex and characterized by numerous activities spread over multiple functions and organizations, which pose interesting challenges for effective (SC) coordination.
Material Management in decentralized Supply Chains.
International Journal of Production Economics
International Journal of Logistics: Research and Applications, (2010), Vol.13 No.5, pp.411-422
[14] A Vazsonyi, The use of mathematics in production and inventory control,” Management Science, (1955) vol.1, No.1

And in Eq. 4, the λi denotes the ratio of thermal conductivities, the footnote i represents different zones or materials, 1 and (i.e.λS) are set for fluid and thick walls respectively.
Ostrach, Natural convection in enclosures, ASME Journal of Heat Transfer Vol. 110 (1988), p. 1175-1190 [8] F.
Incropera, Convection heat transfer in electronic equipment cooling, ASME Journal of Heat Transfer Vol. 110 (1988), p. 1097-1111
Tien, Laminar natural convection in shallow open cavities, ASME Journal of Heat Transfer Vol. 108 (1986), p. 305-309
Bejan, The “Heatline” visualization of convective heat transfer, ASME Journal of Heat Transfer Vol. 105 (1983), p. 916-919

The test material is ordinary 20# carbon steel.
Journal of Physical Chemistry, 1946,50:260-282
Journal of Physical Chemistry, 1947, 50: 908-914
AICHE Journal, 1964, 10: 740-746
Nanjing: Sulfuric acid industry intelligence center of science and technology of ministry of chemical industry, 1990:11.

Sports tourism covers a wide scope; therefore it can increase the flow of people, goods and materials' consumption of tourism area, which will provide a large number of employment opportunities.
Acknowledgements Researches were performed in “Twelve-Five” social science research project funded by Education Department of Jilin Province.
Journal of Physical Education, Vol. 18, No.4(2011), p.53-56, in Chinese
Journal of Shenyang Sport University, Vol. 33, No.2(2014), p.64-67, in Chinese
Journal of Physical Technology, Vol. 32, No.3(2011), p.20-23, in Chinese

Existing structures e.g. towers, chimneys or poles despite being constructed from different materials (concrete, steel, composites) can be approximately considered as classically (proportionally) damped.
Acknowledgements The kind support of the Czech Science Foundation project No. 13-41574P and of the RVO 68378297 institutional support are gratefully acknowledged.
Sawicki, Response errors of non-proportionally lightly damped structures, Journal of Sound and Vibration, 200(4) (1997), 543-550
Wang, Perturbation method for determining eigensolutions of weakly damped systems, Journal of Sound and Vibration, 187(4) (1995), 671-681
Cha, Approximate eigensolutions for arbitrarily damped nearly proportional systems, Journal of Sound and Vibration, 288 (2005), 813-827

(3) Strength failure criteria Using the ANSYS program with Willam-Warnke five-parameter failure criterions .Multilinear isotropic hardening model (M150) .This failure criterion can better predict the destruction of the concrete material
Square steel tube recycled concrete column eccentric compression bearing performance test research［J］Journal of Building Structures, Vol. 33 No. 9 Sep．2012.
Beijing:Science press ,2004.
Journal of Constructional Steel Research, 2006, 62 ( 12 ) :1310-1324 [5] Wu Bo, Liu Wei, Liu Qiongxiang, etal.
China Civil Engineering Journal, 2010, 43( 2) : 32-38.