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Finally, the experiment results show that this proposed method can exactly identify the faults of composite materials.
Finally, the experiment results show that this method can exactly identify the faults of composite materials.
It has very great applied foreground to use ANN for damage identification of composite materials.
In this paper, it was studied to use improved BPNN for damage identification of composite materials.
AIAA Journal. 1994, 32:176~183

Introduction Granular materials are encountered widely in nature and engineering.
The parameter can express the stability of granular materials at particle scale.
Critical state and evolution of coordination numberin simulated granular materials.
Journal of Tongji University (Natural Science), 2007, 35, 1299-1304
Microscopic theoretical model of critical state for granular materials.

Mixed-Mode Crack Propagation in Functionally Graded Materials Jeong-Ho Kim 1,a and Glaucio H.
These materials have been introduced to take advantage of ideal behavior of material constituents.
Tina Panontin), and the National Science Foundation (NSF) under grant CMS0115954 (Mechanics and Materials Program).
Shemilt: Journal of Materials Science Vol. 36 (2001), p. 1077
Kim: Mixed-mode crack propagation in functionally graded materials, Ph.D.

Improving the Strength of Abrasive Wheels and Optimizing the Control over the Strength of Composite Abrasive Materials Boris A.
Mills., Materials Selection Applied to Vitrified Alumina & CBN Grinding Wheels.
Journal of Materials Processing Technology 108 (1) (2000) 114-124
Series: Materials Science and Engineering 297 (2018) 012048
Assessment of Wear Resistance of Composite Materials and Grinding Wheels Made of Them.

Application of Composite Materials in Ball Sports Equipments Changwu Huang Physical Education Institute, Hunan University of Technology, China changwuhang@yeah.net Keywords: Equipment Materials, Composite Materials, Ball Games, Matrix Index Abstract.
By means of its outstanding performance, Bayer Material Science takes lead in the field of ball innovation.
Moreover, the materials turn to the composite materials continuously in property [5].
Rare Metal Materials and Engineering, 2002, (6)
Journal of Chengdu Sports University, 2006, (05)

Generalized Thermoelastic responses of Functionally Graded Materials LI Shi-rong 1, a, ZHOU Feng-xi 2,3,b , LAI Yuan-ming 3,c and YANG Yan 2,d 1 College of civil science and engineering, Yangzhou University, Yangzhou, 225009, China 2 School of civil engineering, Lanzhou university of technology, Lanzhou, 730050, China 3 Cold and Arid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences; Lanzhou, Gansu 730000, China a lisr@lut.cn, bzfx620@163.com, cymlai@lzb.ac.cn, dyangy@lut.cn Keywords: Functionally graded materials, Generalized thermoelasticity, Lord-Shulman's theory, state space approach.
J. of Engineering Science.
J. of Mechanical Sciences.
J. of Mechanical Sciences.
[6] P Ponnusamy: International Journal of Solids and Structures.

Microstructural and Microanalytical Study on Cementitious Materials Subjected to the Cyclic Sulfate Environment YUAN Xiaolu College of Civil Engineering and Architecture, Three Gorges University, Yichang 443002, China Email: yuanxiaolu1980@aliyun.com Keywords: microstructural study; cementitious materials; mineral admixtures; cyclic sulfate environment Abstract.
Experimental Materials Ordinary Portland cement (OPC), ClassⅠfly ash (FA), and ground blast furnace slag (GBFS) were used.
Construction and Building Materials, 2007, 21: 1771-1778
Journal of the Chinese Ceramic Society, 2009, 37(10): 1754-1759
Journal of Wuhan University of Technology (Material Science Edition), 2010, 25(6): 1065-1069.

The database collected corresponding materials on public sports from nearly 60 countries, with up to 2 million characters in volume.
With the document literature method, we have retrieved academic journals published between 1998 and 2010 on sports and material databaseinformation from Chinese Journal Full-text Database, and have also consulted related works in information science and material databasedesign.
China Sports Science.
Journal of Sports and Science.
Journal of Tianjin Sports University.

The metal materials play important roles in the area of the industry.
As we all known, the structure of the materials’ organization affect the using properties directly.
In the condition of active service, most materials losing efficacy begin on the surface.
Comparing with the common materials with coarse grain, the nano materials are with super high strength, super high hardness, good ductility and other excellent properites.
B Wang., J Lu., K Lu: Science, Vol. 16. (2010), p.90 (in Chinese) [13] Yu Wang, Min Huang, Huilin Gao, Xianghong Lv: Materials for Mechanical Engineering, Vol. 33. (2009), p.51 (in Chinese) [14] Jiang Yin Translat: Heat Treatment, Vol. 19. (2004), p.49 (in Chinese) [15] Aiqiang Lv: Chinese Journal of Materials Research, Vol. 19. (2005), p.118 (in Chinese)

Study on preparation of nano-carbon black-polypropylene electric conduction composite materials Zhijia Hana, Shengfei Shenb, Zaiyuan Lic* School of Materials and Metallurgy, Northeastern University, Shenyang 110819, PR China a531215173@qq.com,bshensheng_fei@163.com,clizy@smm.neu.edu.cn Key Words: nanometer; Carbon black; polypropylene; Composite materials Abstract.
The conductivity of conductive polymer composite materials was determined by the class, morphology and specific surface area of the conductive filler [3-4].
Journal of Applied Polymer science.2002, 86 (5):1163-1171
Journal of Materials science, 2007, 42(10):3408-3418
Packaging Technology and Science,1994, 7(6): 283-289.