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Fractal Research on Cracks of Reinforced Concrete Beams with Different Aggregates Sizes SUN Hong-quan, DING Jun, GUO Jian, FU Dong-liang School of Civil Engineering, University of Science and Technology of Suzhou, Suzhou 215011, China hqsun@mail.usts.edu.cn Key words: fractal geometry; fractal dimension; crack; aggregates size; reinforced concrete beam Abstract: Under the concentrated loads, the crack evolutions of reinforced concrete experimental beams (RCEB) with three different aggregate sizes are studied.
Fig. 2 Cracks on the damaged beams (a) LW-L, (b): LW-M, (c) LW-S Fractal Characteristics of Cracks on the Beam Surface Reinforced concrete is a composite material with complex mechanical situation.
Acknowledgements The research of this paper is supported by the National Science Foundation of China (No. 40772198).
Experimental Research on Diagonal Crack of Reinforced Concrete Simple Beam with High-strength Stirrup Based on Fractal Theory, Journal of Hebei University of Technology[J], 2008(2), 77~82.
Fractal geometry analysis of appearance and propagation of crack in concrete structure, Journal of Dalian University Of Technology[J], 1997(s1), 77~81.

Design of Control System in Strapping Machine for Paper Bills Xinju Zhang *1a, Xiuhong Ma2b 1 College of Mechanical and Electronic Engineering, Hebei University of Science and Technology, Shijiazhuang Hebei 050018, China 2 College of Information Technology, Hebei University of Economics and Business, Shijiazhuang Hebei 050061, China azhangxinju2010@163.com, b ma_xh126@126.com Keywords: Paper Bill; Strapping Machine; PLC Abstract.
The iron unit mechanism swings to the tape and melts the colloidal material and then swings back quickly.
Journal of Zhejiang Industry & Trade Vocational College. 2010（3）71～75
[7] Lin Jin-biao and Zhang Zi-wu.The Design of Delivering-settling Mechanism in JUST - I Fully Automatic Control Large Packing Paper Money Machine [J].Journal of Jimei University Natural Science.2003 (4) 350～352

Materials and properties FRP-PP honeycomb sandwich specimens were fabricated from the following materials: the low temperature curing epoxy resin with a specific gravity of 1.14 at 25°C, a solvent based high temperature curing hardener, accelerator (Tertiary Amine) supplied by ROTO polymers of Chennai, the glass fibers of density 2.50g/cm3, supplied by SUNTECH Fibers of Chennai and the visco-elastic Polypropylene honeycomb core material which has the excellent characteristics of high strength-to-weight ratio, energy and sound absorption, corrosion, fungi, rot, chemical, moisture resistance, etc, supplied by M/s Good fellow Cambridge limited of London.
Chung, Structural composite materials tailored for damping, J Alloys Comp, 355 (2003) 216-233
Remillat, Damping mechanism of polymers filled with elastic particles, Mechanics of Materials, 39 (2007) 525–537
Bacon, Effect of fiber orientation and laminate geometry on the dynamic properties of CFRP, Journal of Composite Materials, 7 (4) (1973) 402-428
Maheri, The dynamic shear properties of structural honeycomb materials, Compos Sci Technol 47 (1993) 15-23

And the material belongs to typical stony soil and gravel soil.
Set the advanced pipes as elastic materials and rock & earth mass as ideal elastic-plastic materials, while the yield criteria shall apply the Drucker-Prager (D-P) Model in the ANSYS.
China railway science,2009,Vol.30(2):77-81
Chinese Journal of Underground Space and Engineering, 2007,3(4):758-764
Quaternary Sciences,2006,26(1):136-143

Praksh and N.Manoharan: Materials and manufacturing process Vol.24(12) (2009), p. 1341
Paulo Davim: Materials and manufacturing process Vol. 23(4) (2008), p. 377
Silva: Journal of engineering manufacture Vol. 221(2007), p. 655
[7] J.Paulo Davim, V.C.Clemente and Sergio Silva: Journey of materials processing technology Vol. 203(2008), p. 537
Paulo Davim: Journal of materials processing technology Vol. 96 (2008), p. 73.

The time-hardening material model was therefore employed in the analysis presented in this paper
This is the last part of the pack to form and may be explained by the differences in the actual and predicted material behaviour at higher levels of strain.
As the Abaqus material model is unable to accurately model the softening of Ti-64 at high levels of the strain it results in that section of the pack being less inflated in comparison to the formed part.
Senthilkumar, "Advanced Finite Element Analysis and Simulation in Superplastic Forming Process of Stepped Semispherical Die," Journal of Applied Sciences, pp. 1048-1052, 2012
Hefti, "Innovations in the Superplastic Forming and Diffusion Bonded Process," Journal of Materials Engineering and Performance, vol. 17, no. 2, pp. 178-182, 2007.

For the current study a generic polystyrene material was used.
The material selected for the fabrication of the part was polystyrene.
Future simulations will focus on the optimization of injection molding operational parameters for various other materials so to expand the usage of the current prediction process and validate it, as needed, with actual injection molding operations.
Mao, Z.Meng, Prediction of warpage in plastic injection molding based on design of experiments, Journal of Mechanical Science and Technology. 26, 4 (2012) 1133-1139
Song, Optimization of plastic injection molding process parameters for manufacturing a brake booster valve body, Materials and Design. 56 (2014) 313–317

Model of Finite Element and Boundary Condition Material and Parameters of Shaft.
Khraishi: Journal of Mechanics Vol. 21, No. 2 (2005), p. 27 [4] J.Q.
Chang: Journal of Mechanics Vol. 22, No. 1 (2006), p. 27 [5] N.A.
Jin: Materials Science Forum Vol. 561-565 (2007), p. 2225 [9] A.
Firat: Materials and Design Vol. 25 (2004), p. 73 [11] G.Q.

Introduction The application of solid carbide end mill in China is in a very embarrassing situation, especially in the processing of great cutting amount and complex difficult-to-machine materials in high-end manufacturing such as airline structure and blade, most of the tools mainly rely on importation at present, besides tool materials are short of asks, there still exists a large gap with international in tool design and manufacturing level.
High-speed milling cutter was one of the key factors restricted its efficiency and machining quality, meanwhile high-speed milling put forward higher request to its tool, such as better dynamic symmetrical, advanced material, rational structure, high accuracy, strong security, smooth multi edges cutting process, etc.
(4)Took tool type, handle shape, number of teeth, tool material, tool strength, tool diameter, cutting edge length, handle diameter and radius of flute of tooth as main design parameters, and build inference rules, finally obtained structural parameters by inference
Chen: Journal of Materials Processing Technology (2001) P.114 [6] Y.Y.
Zhou: Journal of Huazhong University of Science and Technology Vol.26(4) P.53 [7] F.J.

Preface High strength cold-drawing pearlite steel wire is the nanocrystalline structure metal material which is obtained by severe plastic deformation.
Testing materials and methods 72LXA steel wire rod is rolled in high speed wire rod Plant of PanGang Group Chengdu Steel & vanadium Co., Ltd, and with its chemical composition is C: 0.73%, Si: 25%, Mn: 52%, P: 0.01%, S: 0.01%。。
High strength galvanized steel wire for bridge cables[J］Structural Engineering International Journal of the International Association for Bridge and Structural Engineering.
Transactions of Materials and Heat Treatment, 2010，31（4）：71- 75
Journal of Netshape engineer, 2010，2（2） ：56- 59．