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Experimental Investigation of Large Deformation Fracture for Rubber Materials YL KANG1,a , X XIAO 1,b , XL LI 2,c , XH TAN 1,d 1 Tianjin University, Tianjin, China, 2Hebei University of Technology, Tianjin, China a tju_ylkang@yahoo.com.cn, bsunshia@gmail.com, clixlnet@163.com,d tanxiaohua268@163.com Keywords：rubber-like materials, crack tip field, large deformation, sector division mode, digital moiré method of circular and radial gratings Abstract.
With the increasing investigation on reliability and stability of engineering structures, it becomes important for reseach on mechanical properties of materials under fracutre conditions.
Concerning to fracture problems of large deformation materials, deformation characteristics of the crack tip field is necessarily needed.
Rubber-like materials possess the ability to withstand large strain, which makes it ideal for many engineering applications, such as tires, belts, vibration isolators, medical devices, and so on.
Double nonlinearity of geometry and material need to be concerned when discussing fracture problems of rubber-like materials.

Due to the great developments in modern science and technology, the application field of porous metal materials has been largely extended, and the demand for materials has also been increased.
With the development of science & technology and the improvement on the demand for industrial technique, membrane materials and its preparing technology has been rapidly advanced.
Catalytic porous materials are special functional materials with active elements distributed in the porous material[4].
This makes powder metallurgical technology one of the most rapidly developed branches in the field of material science and engineering.
The Chinese Journal of Nonferrous Metals 2004，Vol.14 No.2：320-322 [5] L.V.

Analysis of application of new photochromic materials in design of kindergarten Bo Xu 1, a , weiping Hu 2, b 1 Art of design, Faculity of Art and Communication, Kunming University of Science and Technology 2 Faculity of Art and Communication, Kunming University of Science and Technology axubo_10@sina.com, byncaid@sina.com, Keywords: Materials; design; smart materials; photochromic Abstract: New smart materials have taken the lead position in modern design, photochromic materials with base of polymer gradually step into the range of new decorative materials in design of kindergarten, abundant color is the intuitional demonstration to attract children, however, if the color doesn’t change at all for a long term, children will be bored in both aesthetics and vision, such new photochromic materials bring a new breakthrough for design of kindergarten.
With the rapid development of science and technology, humans have been able to display and utilize colors by various means in which the research and application of smart materials bring the new colorful life for us.
Guangdong building materials. 2007 [3] YongMing Dao, Inorganic photoluminescence materials and application [M].Chemical industry press. 2005 [4] YongMing Dao, Inorganic photoluminescence materials and application Ⅱ[M].
Chemical education. 2009 (4) [6] Ying Wang, Jian li, KaLi Gu,Intelligent color coating [J].China journal of surface engineering, 2007, 20 (3) : 9-14
Materials review, 005，19，(10)：3l一35.

Mesoscopic Scale Modeling of “Superplastic” Flow in Geological and Glacial Materials M.
Extensive studies on the deformation mechanisms in these materials have been conducted since the work of Boullier and Gueguen [1] on geological materials and Goldsby and Kohlstedt on ice [2].
Behavior of many geological materials and ice has been reported.
It is emphasized that in geological and glacial materials the grain size varies from extremely coarse to fine grain sizes.
International Journal of Earth Sciences 91 (2002) 445–458

Introduction Materials with high hardness and high toughness are ideal for cutting tools.
Three kinds of milling insert of different materials are chosen in the stainless steel cutting force experiments.
The ultrafine-grain waved-edge insert is very suitable to cut difficult-to-machine materials.
Li and et al: Journal of Harbin University of Science and Technology Vol.01 (2006), pp.149 [5] S.G.
Xiao: Cutting Tool Materials and It's Reasonable Selection (Machine Press, China 1981).

Composition and Microstructure of Cement-like Materials Synthesized by Solution Combustion Technique Oratai Jongprateep1, a Prawin Laomorakot1 and Krongkarn Sirinunwatana2 1Department of Materials Engineering, Faculty of Engineering, Kasetsart University, Ngamwongwan Rd., Chatuchack, Bangkok, Thailand 2Department of Science Service, Faculty of Science, Ministry of Science and Technology, Rama VI Rd., Ratchathewi, Bangkok, Thailand afengotj@ku.ac.th Keywords: Ceramic processing, Cement, Combustion synthesis, Waste, Cockleshells, Rice husk ash Abstract.
Raw materials used in production of ordinary Portland cement mainly consist of limestone, shale, and clay.
Acknowledgement Equipment support from the Department of Materials Engineering, Faculty of Engineering, Kasetsart University, the Department of Physics, Faculty of Science, Kasetsart University and the Department of Science Service, Ministry to Science and Technology, Thailand are gratefully acknowledged.
Journal of Construction and Building Materials. 25: 798-805 [3] R.
Journal of Materials Characterization. 73: 89-95

Introduction Woven bags are widely used for the packaging products such as rice, flour, cement, fertilizer, chemical materials, metal products and so on.
The production of these materials is very great.
There are some advantages by using robot load-unload materials, such as gripping reliably, moving flexibly, placing neatly and so on.
References [1] Li Changchun and Liu Guangzhi: submitted to Journal of University of Jinan (Science and Technology), in Chinese, Vol. 21, No. 3 (2007), p. 238-242
[2] Ning Yuan and Li Wan: submitted to Journal of Guizhou University of Technology (Science and Technology), in Chinese, Vol. 34, No. 4 (2005), p. 63-66

Influence of Limestone Powder on the Performance of Cementitious Materials Yun Dong*1,2,3,a, K.T.Xiao2,3,b and H.Q.Yang 2,3,c 1College of Water Resources and Hydroelectric Engineer, Wuhan University, Wuhan, 430072, China 2Yangtze River Scientific Research Institute, Wuhan, 430010, China 3Research Center on Water Engineering Safety and Disaster Prevention, the Ministry of Water Resources, Wuhan, 430010, China adongyun@mail.crsri.cn, bxiaokt@mail.crsri.cn, cyanghq@mail.crsri.cn Key word: Limestone Powder; Fly Ash; Cementitous Materials; Mechanism of action Abstract: This paper study on the mortar strength, particle gradation and mortar fluidity of binary and ternary systems for cementitious materials with limestone powder or fly ash, analyze the influence of limestone powders with different specific surface areas and contents on the performance of cementitious materials; and research the performance of limestone powder in cementitious materials by means of micro analysis.
This article concentrates on the research of the particle gradation, mortar strength, micro structure and hydration characteristics of binary, ternary systems forcementitous materials with limestone powder or fly ash; and analyzes the mechanism of limestone powder in the cementitous material system.
Test Materials and Method Materials The P·O 42.5 Portland cement accorded with GB 175-2007 and the Grade I fly ash accorded with GB/T 1596-2005 were used.
Refer to Table 1 for materials chemical compositions and Table 2 for limestone and fly ash main performance indices.
Journal of Building Materials, Vol.1 (1988), p. 187-191 (in Chinese) [4] Zhang Chunmei, RAMACHANDRAN V S, Influence of Calcium Carbonate Micro Aggregate on the Hydration of Tricalcium Silicate .Journal of the Chinese Ceramic Society,Vol. 16 (1988), p. 110-117(in Chinese)

Having in mind these extreme requirements we have analyzed the effectiveness of friction materials used in the braking system of wind turbines.
The component composition of braking pads materials.
Nezhnikova, Energy efficiency and the quality of housing projects ARPN Journal of Engineering and Applied Sciences, 11(3) (2016) 2023-2029
Rosso, Study and Optimization of Metal Based Sintered Materials for Automotive Brake Friction Production, Solid State Phenomena, 254 (2016) 20-26
Popa et al., Research on Composite Materials Used for Brake Shoes Manufacture, Solid State Phenomena, 254 (2016) 207-211

Scattering of SH Wave on Periodic Cracks in An Infinite Plane of Piezoelectric/Piezomagnic Composite Materials Wei Shi1, a, Lixia Ma1 1School of Mathematics and Computer Science, Ningxia University,750021, Yinchuan, China ashw@nxu.edu.cn Keywords: Piezoelectric/piezomagnic materials, SH wave, Periodic cracks, Singular integral equation.
Introduction Due to the inherent coupling nature, piezoelectric materials and piezoelectric/piezomagnic materials have attracted wide application in engineering.
Piezoelectric materials and piezo- electric/piezomagnic materials in mechanical behavior are brittle and susceptible to crack- ing, Therefore, it is important to study the electro-magneto-mechanical interaction and fraction behavior of those materials.Great efforts have been made to study the fracture behavior of the materials.
Huang: International Journal of Solids and Structure, 37(2000), p.2981-3009
Li: Integral Equation, Science Press, Beijing, 2008.