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Fibre composite materials have become an important target for the solution of degradation problems in conventional structural materials such as steel, wood and concrete [1].
GFRP materials will loss the strength when the temperature exceeds 600 C0 as shown in Fig. 5 and Fig. 6.
The materials mechanical properties are shown in Table 1.
Hamelin, Composites Science and Technology, 61 (2001) 425-431
Kodur, Progress in Structural Engineering and Materials, 7 (2005) 136-149.

Young: Materials Letters.
Ioannis, Chronakis: Journal of Materials Processing Technology.
Polymer Materials Science and Engineering (Accepted, NO. 9135)
[6] F Ren, T Q Liu: Polymer Materials Science and Engineering.
Ma, et al: Journal of Membrane Science.

Study on Inverse Ultrasonic Modeling for Complex Type Flaw in Homogeneous Material Gangfeng Zheng1,a, Bin Wu2,b and Cunfu He2,c 1College of Materials Science and Engineering, Anhui University of Science and Technology, Huainan 232001, China 2College of Mechanical Engineering & Applied Electronics Technology, Beijing University of Technology, Beijing 100022, China agfzheng@aust.edu.cn, bwb@bjut.edu.cn, checunfu@bjut.edu.cn Keywords: Shape reconstruction; Inversion method; Born approximation; Strong scattering Abstract.
Introduction Nondestructive testing is used extensively throughout the industry for quantitative assessment and detection of defects in engineering materials[1,2].
It is verified that the Born inversion method is suitable for strong scattering materials under certain circumstance.
Matikas, NDT approach for characterization of subsurface cracks in concrete, Construction and Building Materials, 25:3089-3097,2011 [3] J.
Richardson, Time Domain Born Approximation, Journal of Nondestructive Evaluation, 3:45-56,1982 [6] M.

International Journal of Materials and Product Technology. 2019;59(2):102-20. [7] Bhaumik M, Maity K.
International Journal of Materials and Product Technology. 2016;53(1):86-97. [16] Khullar VR, Sharma N, Kishore S, Sharma R.
Arabian Journal for Science and Engineering. 2017 May;42:1917-28. [17] Patel* KM, Pandey PM, Rao PV.
Journal of materials processing technology. 2007 Nov 1;194(1-3):24-9
International Journal of Materials Engineering Innovation. 2021;12(3):246-58. [22] Kumar A, Pandey S, Singh V, Rai RN.

Currently, taking advantage of this technique to investigate the invalid and fracture damage of the materials became a hotspot gradually.
The step pressure value depends on the impact velocity and on the nature of the flyer and target materials, while the step duration is proportional to the flyer thickness.
Both of their materials are aluminum .Their number of SPH particle is 1000 and 20000, respectively, and the original smooth length of that is 10.
In the particular case, where the shock impedances of the flyer and target materials match, the analysis predicts that particle velocity step at the interface should be half the impact velocity.
Wagner: International Journal of Impact Engineering Vol.35(2008), p.1606 [4] Katz S, Grossman E, Gouzman I, et al: Journal of spacecraft and rockets Vol.46(2009) ,p.230 [5] Liu HX, Shen ZB, Wang X, et al: Journal of applied physics Vol.106 (2009),no.063107 [6] T. de Rességuier,H.

Material Preparation.
Atre: Journal of Applied Polymer Science, Vol. 118(2010) No.6 pp. 3602-3611
Zhou,: Journal of Applied Polymer Science, Vol. 114 (2009) No.2 pp.834-842
Criado: Journal of Materials Research, Vol. 16(2001) No.6 pp. 1862-1871
Atre: Journal of Applied Polymer Science, Vol. 118(2010) No.6 pp. 3602-3611

German: Journal of Materials Science 29 (1994), p. 5367
Edirisinghe: Journal of Materials Science 28 (1993), p. 4167 [4] R.E.F.Q.
Edirisinghe: Journal of Materials Science 28 (1993), p. 4821
Terpstra: in Proceedings of 1st International Conference on Advanced Materials Processing, edited by D.L.
Xiong, The Institute of Materials Engineering Australasia Ltd (2000), pp. 113

Protozoa are the most original and the lowest unicellular animals, and they play an important role as the predator and primary consumer in the energy flow and circulation of materials.
Protozoa can be used as a biological indicator and test materials, they are also available for the field of cells, physiology and genetic [[] Guo Tian, DaJie Gong, Li Yan, et al.
Russian Journal of Ecology Vol. 42 (2011), p. 44-49. ].
Journal of Xinyang agricultural college Vol. 17 (2007), p. 112-113.
Journal of China Agricultural University Vol. 13 (2008), p. 77-82.

But the interaction between materials is ignored and the interaction forces between the particles will undoubtedly affect the motion of the material.
Fig. 1 Draft of horizontal vibration conveyor 1 trough; 2 bulk materials; 3 exciter.
Simulation results of multi-particle dynamical mode Materials model.
The properties of Material in the research process: the selected materials are quartz sands which arein diameter and 500 in number.
Meanwhile, the velocity of materials to trough becomes maximum until transport is finished.

Experiments Materials.
Shyu et al.: Journal of Membrane Science Vol. 212 (2003), p. 237-254
Trafny, et al.: Journal of Biomedical Materials Research Vol. 36 (1997), p. 163-166
Lin: Journal of Membrane Science Vol. 243 (2004), p 1-7
Lee, et al.: Materials Science and Engineering C Vol. 25 (2005), p. 472-478