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

Various solid and liquid sensible heat storage materials, Evaporative surface materials are used in the form of billets, in the still.
Materials are shown in Table.1.
The productivity ranges of the materials are 1024 ml/m2/day for sea shell because of the calcium content it will absorb more heat than other materials.
Jordan Journal of Mechanical and Industrial Engineering 1 (2007), 23-29; ISSN 1995-6665
Journal of Advanced Science and Engineering Research Vol 2. (2012), 168 - 177; [11] D.W.Medugu and L.G.Ndanewong.

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.

Introduction Materials science and technology is developing rapidly nowadays, and its development is affected by measurement technology of materials property to a large extent, in which electrical resistivity is one of the key characteristics concerned for many materials such as metal alloy, semiconductor materials and nano-film materials[[1] Dinesh Varshney, Neha Dodiya.
All this combined to find out the characteristics of the materials are for data mining.
To measure the electrical resistivity of metal materials can be applied in analyzing many properties of materials, for example, ageing effect, order-to-disorder transition[[17] Compiled by Lian Fazeng.
Physical Properties of Materials [M].
Journal of University of Science and Technology Beijing, 1991, 13,2:169-172. ],relations between thermal conductivity and electrical resistivity[[19] B.V.

[3] Afifah Md Ali, Recent development in Graphene reinforced aluminium matrix composite, reviews on Advanced Materials Science 2021; 60: 801-817
Zhou (2016): Graphene reinforced metal matrix nanocomposites – a review, Materials Science and Technolog
IOP Conference Series: Materials Science and Engineering, Vol. 653, 2019, id. 12021
Materials Today: Proceedings, Vol. 5, 2018, pp. 20041–20053
Materials and Design, Vol. 88, 2015, pp. 983–989

Influence of material properties on air bending based on RBF Gao Ying1a, Liu Yuzhong1b, Fan Lifeng2c, Li Qiang1, 2d **, 1College of Material Science and Engineering, Hebei University of Science and Technology, Shijiazhuang, Hebei 050018, China 2Mechanical Engineering College, Yanshan University, Qinhuangdao, Hebei 066004, China agaoyingch@sina.com, bkdlyz@126.com, cflf487-@163.com, dliqiang@hebust.edu.cn, Key words: Air bending Springback Finite element RBF neural network Abstract.
An analytical model for predicting springback and side wall curl of sheet after U-bending   Computational Materials Science, Volume 38, Issue 4, February 2007, Pages 707-715
Journal of Manufacturing Processes, 2008, (10): 21~27
Journal of Materials Processing Technology, 2006, (177): 197~201
Influence of die radius on JCO forming for X80 pipeline pipe,Journal of Plasticity Engineering Journal of Plasticity Engineering, 2010, 30(3): 77-79.

Based on the damage of freezing rain and excellent properties of the giant magnetostrictive materials, this paper gives a giant magnetostrictive freezing rain sensor.
While, sensors used the giant magnetostrictive materials has the advantages of high output power, high frequency response, small volume, light weight, and so on [12], which suit for measuring freezing rain.
Science & Technology Information, No. 33 (2012), p.
Quarterly Journal of the Royal Meteorological Society, Vol. 138, No. 666 (2012), p. 1233 [7] Mc Comber Pierre, Druez Jacques.
International Journal of Offshore and Polar Engineering, Vol. 11, No. 1 (2001), p. 16 [9] DeGaetano Arthur T,.

Finally, the thesis summarizes: LCA is not only applied to technological sciences and natural science, but also is applied extensively to social science, economic science, management science and international relationship etc; The implementation of LCA not only depends on LCA standard, but also depends on the implementer's exact understanding of method and target and one's own experience and technological background, and there is much limitation mainly in practical application.
The total life cycle of the products, craft or behavior includes exploitability and processing of raw materials, production, transportation, distribution, use and regeneration, maintenance, recycling and final disposal of products etc."
As a kind of principle and method of product assessment and design at present, LCA is not only applied to technological sciences and natural science, but also is applied extensively to social science, economic science, management science and international relationship etc. (1) Application to the department of industrial enterprise.
One intact LCA case research needs a large number of basic data, which makes data materials being hard to obtain unavoidably.
The International Journal of Life Cycle Assessment, 2005,10(5), p.305~308 [2] Zhijia Huang.

Recently, carbon nanotubes present a wide potential uses in electric, mechanic, electrochemical and materials science field.
Chou: Advanced Materials Vol. 18 (21) (2006), p. 2837. ] Carbonaceous materials presents also a plethora of uses in energy storage, water treatment [[] S.
Biesheuvel:: Progress in Materials Science Vol. 58 (8) (2013), p.1388. ,[]R.
Hamelers: Journal of Colloid and Interface Science Vol. 418 (2014), p. 200. ,[]H.V.M.
Shi: Smart materials and structures Vol. 15 (3) (2006), p. 737. ].

Puertas, and Villa, Material removal rate and electrode wear study on the EDM of silicon carbide, Journal of materials processing technology. 164 (2005) 889-896
[7] Zarepour, H., et al., Statistical analysis on electrode wear in EDM of tool steel DIN 1.2714 used in forging dies, Journal of Materials Processing Technology. 187 (2007) 711-714
[9] Marafona, J., Black layer characterisation and electrode wear ratio in electrical discharge machining (EDM), Journal of Materials Processing Technology. 184(1-3) (2007) 27-31
Materials Research Express. 6(8) (2019)
Journal of Environmental Science and Engineering B 6 (2017) 387-390