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Introduction Reactive powder concrete (RPC) is a new generation concrete with ultra-high strengths and outstanding durability, and it was developed through microstructure enhancement techniques for cementitious materials [1, 2].
Experimental The RPC considered here was prepared by the following materials: PIIO42.5R Ordinary Portland cement, silica fume, fly ash, quartz sand and superplasticizer.
Then the binding materials (i.e. cement, silica fume and fly ash) were added and re-mixed for about 3 min.
Journal of Northeast Dianli University, 2011, 31(5/6): 9-15
Journal of experimental mechanics, 2012, 27(2): 214-220

Simulation and Microstructure Predict during Hot Die-forging of Cast Mg-7.0Al-0.2Zn Magnesium Alloy Lihong Wu School of Materials Science and Engineering, Zhengzhou Univiersity, Zhengzhou 450001, China wlh@zzu.edu.cn Keywords: Mg-0.7Al-0.4Zn; Die-forging; Numerical simulation; Microstructure evolution Abstract.
Introduction Magnesium alloys are presented as suitable candidates for structural materials due to their low density, high specific strength, excellent machinability and good damping capability and electromagnetic interference shielding [1, 2].
The 3D FE model wa composed of a forming punch, billet material and a lower die.
Journal of Materials Processing Technology,187-188 (2007):761-765
Journal of Materials Processing Technology. 171 (2006): 393-398

Kang, etc: Materials for Mechanical Engineering, Vol. 30 (2006) No.11, P.85 (In Chinese)
Xu, etc: Journal of Wuhan University of Science and Technology, Vol. 35 (2012) No.2, P.85 (In Chinese)
Peng, etc: TRANSACTIONS OF MATERIALS AND HEATTREATMENT, Vol. 31 (2010) No.4, P.141 (In Chinese)
Liu: Transactions of Materials and Heat treatment, Vol. 34 (2013) No.8, P.177 (In Chinese)
[6] Colas R: Journal of Materials Processing Technology, Vol. 62 (2013) No.1, P.180.

For the orthotropic materials, the temperature change ΔT has a relationship with the change of principal stresses σT and σL in the directions of material symmetry [11,12] as follow ΔT= -Δ(KTσT+KLσL) 　　　　　　　　　　　　　　　　　　　 (1) where KT and KL are transverse and longitudinal thermo-elastic material coefficient.
Experiments Materials.The plain woven carbon fiber cloth (Mitsubishi Rayon TR3110M) with the tensile strength of 3 GPa and Young’s modulus of 240 GPa was used as reinforcement.
Materials Vol. 137 (1998), p.139 [11] K.
Fujii: Journal of reinforced plastics and composites Vol. 19 (2000), p.83 [14] C.C.
Fujita: Advanced Materials Research Vol. 646 (2013), p.38 [16] E.K.

Material constitutive relationship used mohr-coulomb model, simulating process of tunnel of excavation and support, researching and stimulating surface subsidence.
The process of excavating underdrain involved in increasing and decreasing of materials, take advantage of the ADINA(Element Birth/Death), and it was very convenient of achieving numerical simulation of process of excavating underdrain.the software of ADINA provides function of Element Birth/Death,it is in possess of many convenient that it is engineering definition,operating convenient and the fast of calculating velocity and so on. meanwhile it is able to simulate different scheme of constructing,by contrast of simulating different constructed schemes,select optimum schemes of constructing.
Acknowledgements This work is financially supported by National Natural Science Foundation Of China (5097813) .
Chinese Journal of Geotechnical Engineering,2011.30(S1): 3002-3008
Theprinciple and parameters analysis of piperoof-support systemapplied In soft ground[J].Journal of Rock Mechanics and Engineering, 2005.24(14):2565-2570.

Experimental Materials.
The materials were previously dried in an oven at 50°C for 4 h.
Journal of Polymer Science Part A: Polymer Chemistry, 2009. 47(1): p. 315-317
Long, Mechanical and ultimate properties of injection molded cellulose acetate/plasticizer materials.
International Journal of Polymeric Materials and Polymeric Biomaterials, 2010. 60(2): p. 115-123

Evans, The out-of-plane compressive behavior of metallic honeycombs, Materials Science and Engineering: A 380 (2004) 272–280
Sypeck, Cellular truss core sandwich structures, Applied Composite Materials 12 (2005) 229–246
Das, A review on manufacture of polymeric foam cores for sandwich structures of complex shape in automotive applications, Journal of Sandwich Structures & Materials 24 (2022) 789–819
Lee, Compressive behavior of aluminum/copper hybrid foams under high strain rate loading, Materials Science and Engineering: A 592 (2014) 111–120
Wadsworth, Effect of cell morphology on the compressive properties of open-cell aluminum foams, Materials Science and Engineering: A 283 (2000) 105–110

Test Materials and Methods The chemical compositions of 4145H and X new type DC steel were shown in Table 1 and their mechanical properties were shown in Table 2.
E-mail address: zengdezhiswpu@163.com Acknowledgements The research of the paper is supported by the National Natural Science Foundation of China (No.: 51004084) and Young Teacher Science Foundation of Characteristic Key Subject Construction Foundation of China References [1].
Development of Steel for Drill Collar AISI 4145H, Ordance Material Science and Engineering. 1997，20（2）;52～55 [2].
Predict ion of Crack Tip Opening Displacement (CTOD) from the Instrumented Impact Test Based on the Local Approach, Journal of Materials Science & Engineering.2009, 27(6), 946-948 [7].
Rare Metal Materials and Engineering, 2009, 38(3),175-180.

Composite floor system utilizing asymmetric H-shaped steel to mitigate the problem of floor height, one of the most serious drawbacks inherent in composite steel structures boasts advantages such as increase in floor area up to 10%, economy in building materials and resources and reduction in wastes. [1] However, before it is commercialized and actually used in the field, studies on the long-span structure of composite floor system having the advantage of reduced floor height should be conducted to define its rapid deformational behavior upon a fire and find ways to secure fire-resistance performance, which was why this study was carried out.
Newman, "Fire Resistance of Slim Floor Beams", Journal of Constructional Steel Research, Vol. 33, pp.87-100(1995)
[4] Pentti Makelainen, Zhongcheng Ma, "Fire resistance of composite slim floor beams", Journal of Constructional Steel Research, Vol. 54, pp.345-363(2000)
Bailey, "The behavior of asymmetric slim floor steel beams in fire", Journal of Constructional Steel Research, Vol. 50, pp.235-257(1999)
Kim, H.J.Kim, “An Experimental Study on the Fire Resistance Capacity of Asymmetric Slimflor Beam ”, Journal of Korea Institute of Fire Science and Engineering, Vol. 24 No. 1, pp.40∼45

The starting materials were SrCO3（4N）, SrF2（4N）,Ga2O3（4N）,Eu2O3（4N）and Bi2O3（4N）.
Journal of Rare Earth. 29(2008) 44-49
Journal of Beijing University of Chemical Technology. 34(2007) 26 [10] Qing-Liu, You-Fen Li, Research on Fabrication and Optical Performance of SrGa2O4:Eu3+, J.
Chinese Journal of Luminescence. 6(2007) 864-868 [11] Yan, S., et al., Enhanced Red Emission in CaMoO4:Bi3+,Eu3+, J.
Journal of Physical Chemistry C. 111(2007) 13256-13260