Search results

Evolutionary Structural Optimization Using Material Efficiency Grades Xing-guo HU 1, a, He-ming CHENG 1,b 1Faculty of Civil Engineering and Mechanics, Kunming University of Science and Technology, Kunming, China, 650500 akgtumuhxg@sina.com, bchenghm@public.km.yn.cn Keywords: Evolutionary structural optimization; Structural topology optimization; Material efficiency grades; Inefficient material criterion Abstract: In the evolutionary structural optimization (ESO) using the rejection ratio, the criterion of the inefficient material removal can’t generally be lowered during the optimization process because the rejection ratio can’t be decreased.
The ESO-MEG can determine inefficient material in a structural optimization according to the efficiency grades of each part of material, so it can adjust timely and flexibly the criterion of inefficient material removal.
Journal of Constructional Steel Research, 2008, Vol.64, p. 305-311
Journal Of Structural Engineering-Asce. 1999, Vol.125(12), p. 1432-1438
Journal of Sound and Vibration, 2000, Vol.234(2),p. 177-189

Zhang, Research progress of microwave absorption Materials, Electronic Components and Materials. 28 (2009) 78-81
Kang, Resarch in theoretical designs of microwave absorbing materials, Materials Review. 23 (2009) 5-8
Zou, Computation simulation of EM parameters of LDT-epoxy disperse systems, Journal of Aeronautical Materials. 24 (2004) 15-20
Li, Study on hexagonal polycrystalline ferrite material with electron-wave absorbing, Journal of the Chinese Ceramic Society. 26 (1998) 275-280
Yang, Combination of ant colony algorithm and microgenetic algorithm for multilayered radar absorbing coatings optimization, Journal of Functional Materials. 39 (2008) 1052-1055.

Materials and Methods Geometrical Modeling and Material Property.
Migliavacca: Materials Science and Engineering B Vol. 176 (2011), p.1733 [3] Z.Y.
Yang: Journal of Functional Materials Vol. 38 (2007), p.113 [4] K.
Wang: Journal of Materials Processing Technology Vol. 184 (2007), p.447 [8] X.
Ni: Journal of Functional Materials Vol. 40 (2009), p.446 [9] N.

Experimental study on fracture properties of cementitious materials Yu Zhu 1,a , Shilang Xu 1,b 1 State Key Laboratory of Coastal and Offshore Engineering, Dalian University of Technology, Dalian 116024, China a yuzhuxx@yahoo.com.cn, bslxu@dlut.edu.cn Keywords: cementitious materials; initial cracking load; fracture; three-point bending beam Abstract: For micro-fiber reinforced strain-hardening cementitious materials, in addition to the basic characteristics and mechanical properties of fiber and interfacial properties between fiber and matrix, mechanical properties of matrix such as strength and crack resistance are essential parameters for material design, too.
Therefore, the fracture properties of cement paste and mortar which are two most basal cementitious materials were studied, using three-point bending beams of which strength and depth are varied.
To gain this aim, the fracture properties of cement paste and mortar which are two most basal cementitious materials were studied, using three-point bending beams of which strength and depth are varied in this paper, and the results are analyzed by using the double-K fracture criterion [4, 5].
Materials and Structures 28(183) (1995), p.586-595 [2] Li V.C.: Reflections on the Research and Development of Engineered Cementitious Composites (ECC) [C], Proceedings of the JCI International Workshop on Ductile Fiber Reinforced Cementitious Composites (DFRCC) - Application and Evaluation (DRFCC-2002), Takayama, Japan, Oct (2002), p.1~21 [3] Li V.C.: On Engineered Cementitious Composites (ECC) - A Review of the Material and its Applications [J], J.
Journal of Hydraulic Engineering 4(2001), p.34-39

Study on the new wall insulation materials of vitrified micro bubbles Jiang Zhu, Guozhong Li a* School of Material Science and Engineering, University of Jinan, Jinan, Shandong, 250022, China a mse_ligz@ujn.edu.cn, * correspondence author Keywords: Vitrified micro bubbles, Expanded perlite, Wall insulation materials, Orthogonal experiments, Mechanism.
However, the inflammability of these organic polymer materials poses high risks in their applications.
Compared with organic materials, inorganic insulation materials are of some advantages, such as non-flammable, ageing resistance, smaller coefficient of variability, higher bond strength, etc.
The performances of wall insulation materials of expanded and vitrified micro bubbles were collected in Table 6.
References [1] Heng Wang and Yong Liao: JOURNAL OF SOUTHWEST UNIVERSITY OF SCIENCE AND TECHNOLOGY Vol. 27(6) (2010), p. 36 (In Chinese) [2] Shengyuan Zhang, Xiu Yang and Yi Jiang: ENERGY OF CHINA Vol. 30(7) (2008), p. 37-39 (In Chinese) [3] Bozhang Qian and Jianfang Zhu: CONSTRUCTION ENERGY CONSERVATION Vol. 37(2) (2009), p. 57 (In Chinese) [4] Tianshu Gu, Lianyu Xie and Ge Chen: BUILDING ENERGY CONSERVATION AND WALL THERMAL INSULATION.

[2] Xiaoyan Song, Bowen Cheng: Journal of composite materials, Vol. (5)2010, p. 29-35
[3] Jichun Liu, Mengyue Fu, Qingyuan Li: Journal of composite materials, Vol. (29)2012, p.9-18
[5] Yan Gao, Shanhua Zhou: Journal of east China university of science and technology, Vol. (32)2006, p. 1201-1205
[9] Hai Huang: Journal of Applied Polymer Science, Vol. (78)2000, p. 1233-1238
[10] Hongwen Zhang, Yan Jiang, Yongquan Dong: Journal of Applied Polymer Science, Vol. (102)2006, p. 3919-3926

Surface Science and Engineering, Vol. 4, No. 1 (2010) [2] H.
Conrad: Effects of Temperature and Ram Speed on the Flow Pattern in Axisymmetric Extrusions of 2024 Al Alloy, Materials Science and Engineering, 12, pp. 47-58 (1973) [4] J.X.
Takahashi: Experimental simulation of metal flow in porthole-die extrusion, Journal of Materials Processing Technology, 49 pp. 1-11 (1995) [5] H.
Valberg: Metal flow in the direct axisymmetric extrusion of aluminum, Journal of Materials Processing Technology, 31, pp. 39-55 (1992) [7] Y.
Murakami: Metal flow in porthole die extrusion of aluminum, Journal of Materials Processing Technology, 121, pp. 107-115 (2002) [9] T.

Materials Science Forum Vols. *** (2004) pp.830-833 online at http://scientific.net  2004 Trans Tech Publications, Switzerland Development of PMAC-based Multifunctional Combined CNC Machine M.Y.
The electrical discharge machining combined with Materials Science Forum Vols. *** 831 ultrasonic machining is more efficient only if the cross section area of the electrode is less than a certain value; in this case, it is suitable for reverse copying of profiled holes and complicated profiles of conductive hard and brittle materials.
Groups of limit switches are installed on the machine body Advances in Materials Manufacturing Science and Technology 832 for protection, and these terminals are linked with the specially designed port on PMAC.
Su, et al: J. of the Materials Processing Techn.
Jia, et al: Journal of the Materials Processing Technology Vol.88 (1999), p. 180.

Journal of Thermoplastic Composite Materials 31 (2018) 1470-1482
Mano, The double porogen approach as a new technique for the fabrication of interconnected poly (L-lactic acid) and starch based biodegradable scaffolds, Journal of Materials Science: Materials in Medicine 18 (2007) 185-193
Ho, Preparation of porous 45S5 Bioglass®-derived glass–ceramic scaffolds by using rice husk as a porogen additive, Journal of Materials Science: Materials in Medicine 20 (2009) 1229-1236
Materials Science Forum 861 (2016) 247-252
Ghassemieh, Control of morphological properties of porous biodegradable scaffolds processed by supercritical CO2 foaming, Journal of Materials Science 48 (2013) 3254-3263

Preparation and Characterization of ZnO: Eu, Mn Luminous Material Ye Yanan 1, Dong Limin1, 2, Che Houzhao1, Mao Shuaiying1, Chen Ziyi1 and Zhang Xianyou1, a 1College of Materials Science and Engineering, Harbin University of Science and Technology, Harbin 150040, China 2Key Laboratory of Engineering Dielectrics and Its Application, Ministry of Education, Harbin University of Science and Technology, Harbin150040, China acorresponding author: zhangxianyou163@163.com Keywords: ZnO; Chemical precipitation method; Luminescence Abstract.
Meanwhile we knew that the waste of rare-earth luminescence materials would pollute the environment, so it was beneficial to find the appropriate rare earth elements as the luminescence materials sensitization agent.
Journal of Materials Science. 42 (2007) 10-17
Journal of Nanoparticle Research. 12 (2010) 217-220
Bulletin of Materials Science. 33 (2010) 227-234