Search results

Chiba, Behavior modeling and microstructural evolutions of Ti–6Al–4V alloy under hot forming conditions, International Journal of Mechanical Sciences.
Hodgson, Constitutive analysis of hot deformation behavior of a Ti6Al4V alloy using physical based model, Materials Science and Engineering.
Jahazi, Transformation softening in three titanium alloys, Materials & Design.
Specht, In situ observations of lattice expansion and transformation rates of α and β phases in Ti–6Al–4V, Materials Science and Engineering, Vol.391 (2005) 104–113
Mohamed, Micrograin Superplasticity: Characteristics and Utilization, Materials, Vol.4 (2011)

Influence of Temperature and Stress Factors on Warm Compaction Process of Molybdenum Powder Density Jian Li1, a, BintingYang1，b 1 College of Material Science and Engineering, Northwestern Polytechnical University, 127 Youyi Xilu, Xi’an 710072, China a ljnpu@126.com, bybt2006abc@163.com Keywords: Warm compaction process; Numerical simulation; Thermal-mechanical coupling; Relative density Abstract.
FEM Simulation Geometric And Material Model.
Table 1 Material parameters for cylindrical pressed compact Parameter type Parameter value Geometric size Stock diameter:40mm, Height:40mm Material parameters Young's Modulus E=32000 MPa , Poisson ratio μ=0.25 , Initial relative density 0.5, Initial yield stress 160 MPa, Expansion coefficient 4.9×10-6 Thermal parameters Mo powder temperature 200ºC, Inner heat conductivity 149 W/(m·k), Contact coefficient of heat transmission 120 W/(m·k), Die temperature 150ºC It is shown in Fig.1, the model is composed of powder punch and female die which can be heated and insulated.
LARGE DISP, PLASTICITY 5 and UPDATE are chosen here because great nonlinear of material and boundary exists.
Nor: Mech Mater Vol.41 (2009), p.553–560 [4] S.J.Guo, R.Chi etal:Materials Science and Engineering of Powder Metallurgy Vol.11 (2006), p.24-27 [5] Z.Y.Zhou, P.Q.Chen, W.B.Zhao, etal: Journal of Materials Processing Technology Vol.129 (2002),p.385-388 [6] P.F.Feng and J.Sun：China Molybdenum Industry Vol.34(2010),p.39-45

Nowadays, many scholars in civil engineering field have paid attention to the piezoelectric (PZT) smart materials, which can be used to effectively monitor the dynamic characteristics of structures of real-time.
Piezoelectric smart material has some superior characteristics, such as fast response, wide frequency response range, low prices, easy cutting [1~5] etc.
The paper is to study the application of piezoelectric smart materials in structural tests of dynamic loading.
References [1] Song G, Gu H, Li H: An Overview Earth & Space 2004.( League City, 2004), p. 680-687 [2] UDD E: Fiber Optic Smart Structures.( Wiley Inter Science: Join-Wiley & Sons Inc, 1995) [3] Mazzolani F M, Mandara A: Engineeering Structures, Vol. 2(4) (2002), p. 843-856 [4] Kawiecki G: Journal of Intelligent Material Systems and Structures, Vol, 2(3)(1998), p. 189-197 [5] Wang C S: Smart Materials and structures, Vol. 10(3)( 2001), p.548-552 [6] Song G, Gu H, Mo Y L: Smart Mater Struct, Vol. 16(4) (2007), p. 959-968 [7] Gu H, Song G, Dhonde H: Smart Mater Struct, Vol. 15(2) (2006), p. 1837-1845 [8] Yanliang Du, Baochen Sun, Guanglei Zhang: Smart Material and Structure Health Monitoring (Huazhong University of Science and Technology Press, China 2011)

Three beams were layered with PE-SHCC material and one whole RC beam was a control specimen for comparison.
Experimental Program Test specimens and materials.
It is clear that SHCC material can improve the ductility of flexure-dominant beams.
Initial crack appeared at 40kN on concrete substrate material.
K.; and Wu, H.C., Matrix Design for Pseudo Strain-Hardening fiber Reinforced Cementitious Composite, RILEM, Materials and Structures Journal, 1995, pp. 586-595 [2] Lim Y.

The hot-pressing technology for the poplar particle /waste rubber powder composites was studied using the poplar particle and waste rubber powder as raw materials.
The recycling of waste rubber powder by means of blending with other materials has become an important topic in recent years.
Experiment Materials: Waste Rubber Powder was prepared from waste tires with reinforced tendons being mechanically removed prior to grinding.
However, the high density will result in heavy materials which are difficulty for the transportation and costs increased to affect its application.
Journal of Forestry Research 2002 (13):74-76

Journal of structural engineering, 2005,131(2):322-328
International Journal of Rock Mechanics & Mining Sciences, 2010,47:1038-1045 [7] Li You, Bai Shiwei, Zhu Weishen, et al.
International Journal of Rock Mechanics & Mining Sciences, 2009,46:699-707
Journal of Geomechanics, 2006,12(2):166-173.
Journal of Geotechnical Engineering, 1995, 121(6):486-492

The molded specimen is put on the road material strength tester to exert pressure (e.g.
The remolded specimen is put on the road material strength tester to exert pressure (e.g.
Experimental Study On Relationship Between Tensile And Shear Strength Of Unsaturation Clay Earth Material.
Chinese Journal of Rock Mechanics and Engineering[J] Sept.,2008.Vol.27 Supp.2: 3453-3458
Journal of Xi’an Highway University,2000,20(2) : 20–22

Although only a fundamental example has been presented here, it is worth to mention that the method proposed can be directly used to analysis curved beams with arbitrary cross-sectional shapes and composite materials.
Non-linear material behaviour and large deformation effects can also be included by incremental loading processes.
Acknowledgements This research is funded by Hebei natural science research funding under grant E2010001225, Hebei research funding for returning overseas researchers under grant 20100707, and Yanshan university doctorial research funding.
Henshall, Torsion-extension coupling in initially twisted beams by finite elements, European Journal of Mechanics - A/Solids, Vol. 20(3), (2001) pp. 501-508
Henshall, A coupling cross-section finite element model for torsion analysis of prismatic bars, European Journal of Mechanics - A/Solids, Vol. 21(3), (2002) pp. 513-522

The Numericial Calculation of Retaining Structure With Double-Piles Yinghui Chen 1, a, Yanlian Pan 2,b 1Faculty of Architectural Engineering, Kunming University of Science and Technology, Kunming, 650224, China 2 Yunnan Construction Engineering group Co, Ltd, Kunming, 650041, China a1516517694 @qq.com, bpanyanlian@163.com Keywords: Double Piles Retaining Structure, Numercal Simulation, Excavation.
Flac3d is a numerical simulation software for geotechnical engineering, it has advantages in elastic-plastic analysis, large deformation analysis of material and construction process analysis [4].
References [1] Cai Yuanqiang, Ruan Lianfa, Wu Shiming: submitted to Journal of building structures, 1999, 20(4):65-71
Advanced Materials Research Vols. 594-597(2012) pp 557-560
[3] Sun Kai, Xu Zhengang, Liu Tingjin: Chinese Journal of Rock Mechanics and Engineering，2004，23(2): 293-298

National center for quality supervision & test of steel material products, Maanshan, Anhui,243002, P R China a. konghui@ahut.edu.cn KEY WORDS: oxide inclusion; intragranular acicular ferrite; oxide metallurgy Abstract: The medium carbon steel (C: 0.26%, mass percentage) was deoxidized by Ti alloys, and its features of inclusion and microstructure were systemically studied through the scanning electron microscope (SEM) and Energy Dispersive Spectrometer (EDS).
Acknowledgment This work was supported by the Ministry of Education science and technology research key project (211074), the Ministry of Housing and Urban-Rural Development research project (2012-K4-41), Anhui University of Technology graduate innovation research (No. 2011002) and Anhui University of Technology SRTP program (No. 2012008) .
H., Metallurgical and Materials Transactions A, Vol.28 (1997), p.2005 [3] P.
Gao, Journal of Iron and Steel Research, International, Vol.17 (2007), p.63 [12] H.
Yamamoto, Welding Journal, Vol.66 (1987), p.301