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References [1] Zhang Lei, Cui Shanzi, Luo Jing, Liu Li: Journal of Changchun Industry University, Vol.7 (2006), p.284-287.
(in Chinese) [2] Wang Junxiang, Li Lin, Ge Shirong, Zhu Hua, Liu Jinrong, Liu Weimin: Journal of China Mining University, Vol. 2( 2002), p. 158-161.
(in Chinese) [3] Lu Zixing, Feng Zhihai, Kou Changhe, Liu Zhenguo, Lu Meng, Mai Hanchao: Journal of composite materials, Vol. 16 ( 1999), p. 123-131.
(in Chinese) [5] Wangyang, Jiang Dazhi, Xia Yuanming: Material science and procss, Vol. 1 (2001), p. 32-36.
(in Chinese) [6] Chen Ping, Lu Chun, Yu Qi: Journal of Material Research, Vol. 1 (2005), p. 159-164.

Professional paper shows the general characteristics of graded materials, their previous industrial use and potential use of graded materials in the future.
Introduction Graded materials (FGM - Functionally Graded Materials) are in intensive use for last two decades.
The largest groups of graded materials are as follows: - bioactive graded materials, - tool steel with C, V, Cr and Ti gradients, - materials with self-lubricating ability, - graded materials with high temperature resistant surface layer. 2.
Properties of functionally graded materials Graded materials are very innovative product in the field of technology.
Yang, Cracks in functionally graded materials, Materials science & Engineering. vol. 362, 1-2 (2003) 2-16

Journal of Materials Science, 42,9, 2917-2933
Journal of Materials Science, 42,9, 3107-3116
Journal of Hazardous Materials, 180,1–3, 748-752
International journal of molecular sciences, 13,4, 4388-4395
Journal of Materials Science, 44,7, 1873-1880

Different backing materials with metal powder/epoxy resin composite materials were prepared in this study, and their influences on performances of the CPUS were investigated.
Materials Research Bulletin, 2006, 41 (2): 291-297.
Composites Science and Technology, 2007, 67 (1): 135-139.
Composites Science and Technology, 2005, 65 (9): 1363-137.
Journal of the Chinese Ceramic Society, 2006, 34(5): 626-629.In Chinese

Numerical Investigations of Ultrasonic Scattering from voids in Composite Materials Based on Random Void Model1 Li Lin, Xiang Zhang, Jun Chen, Ximeng Li NDT & E Laboratory, School of Materials Science & Engineering, Dalian University of Technology, Dalian, Liaoning Province, China linli@dlut.edu.cn Keywords: Composite; Porosity; Ultrasonic attenuation; Random void model; Morphology.
Even at the fixed porosity, ultrasonic attenuation coefficient fluctuates due to the randomness of void morphology in CFRP composite materials.
Komsky, "Quantitative porosity characterization of composite materials by means of ultrasonic attenuation measurements," Journal of Nondestructive Evaluation, vol. 11, pp. 1-8, 1992
Jeong, "Effects of Voids on the Mechanical Strength and Ultrasonic Attenuation of Laminated Composites," Journal of Composite Materials, vol. 31, pp. 276-292, February 1, 1997 1997
Li, "A morphology-dependent model applied to predict void content of composites based on ultrasonic attenuation coefficient: Random Void Model," Applied Physics A: Materials Science & Processing.

The Study on Building Materials’ Optimization Based on Fuzzy Technology Liwen You Vocational and Technical College, University of Science and Technology Liaoning youliwen23423@163.com Keywords: Fuzzy technology; optimization; building materials Abstract.
Finally, a building materials optimization scheme is put forward a kind of fast, reliable program completion, it is never seen evaluation building materials.
It’s scarcely used in optimization of building materials, so we added a process as the lower part in the Fig.1.
Through investigation and analysis, data collection, combined with qualitative analysis in the effect of building materials for building a village, a new village economic evaluation of building materials is established, which contains 3 levels and 14 representativeness indexes (Fig.2).
Conclusion Three indexes with 14 sub-indexes have been used for assessing three different building materials.

The material reserves are the material basis for military emergency operation[1].
Science of military equipment support(Military science publishing house, Beijing 2009)
Discuss on reserve scale of military materials.
Journal of the academy of equipment command and technology, vol. 13(2002), p. 26-29 [5] L.
Journal of beijing institute of technology(social sciences edition), vol. 4(2006), p. 18-20

The model widely used in the fatigue crack growth study in materials science and fracture mechanics is the Paris-Erdogan, which relates the stress intensity factor with the subcritical crack growth, under a fatigue regime.
Key Engineering Materials, 664, 96–103
SN Applied Sciences, v. 2, n. 7, p. 1-8, 2020
[8] American Society For Testing And Materials.
Applied Mechanics and Materials, 851, 317–321

(7) The propagation theory of wave in functionally graded materials It can be assumed that the functionally graded materials plate, shown in Fig. 1, has no vacancies and consists of two kinds of materials A and B, fA is the A materials components, and fB = 1-fA.
International Journal of Engineering Science, 2008. 46: 809-817
Science in China G:Physics, Mechanics&Astronomy, 2008. 51(2): 165-175
International Journal of Solids and Structures, 2009. 46: 1354-1361
International Journal of Engineering Science, 2008. 46: 929-947

Research and Application of Web-based 3D Visualization of Monitoring over Materials haulage to Dam Cui Bo, Zhong Denghua, Zhong Guiliang School of Civil Engineering Tianjin University Tianjin, China e-mail: cb-tj@163.com Keywords- monitoring over materials haulage to dam; web-based 3D visualization; B/S architecture; 3DS MAX; ActiveX Abstract.The aim of web-based 3D visualization of monitoring over materials haulage to rock-fill dam is to achieve 3D visual expression on internet for transporting vehicles and the surroundings, which is hydropower project construction site layout.
Applied mechanism of ActiveX control in monitoring system of materials haulage to dam.
The applied mechanism of ActiveX technology in monitoring system of materials haulage to dam is shown in Figure 2.
Users can visit the monitoring and analysis system of materials haulage to rock-fill dam through IE browser to perform web-based 3D visual monitoring over materials haulage to dam, including visual query for transporting vehicles locating and dispatching, visual query for discharging records and graphic reports output for traffic density of roads and haulage intensity to dam.
Interfaces of the monitoring and analysis system of materials haulage to rock-fill dam.