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awangbl2001@hotmail.com, bhanjc@hit.edu.cn Keywords: Functionally graded materials, Cracks, Fracture mechanics, Dynamic fracture mechanics Abstract.
Introduction In non-homogeneous materials such as functionally graded materials, the response has a strong dependence on the spatial variation of thermal and mechanical properties [1].
Conclusions A theoretical model is developed for the interactions of an array of cracks periodically located in functionally graded materials.
Miyamoto et al.: Functionally Graded Materials: Design, Processing and Applications.
Erdogan: International Journal of Engineering Science Vol.26 (1988), p. 559

China 2School of Materials Science and Engineering, Wuhan University of Technology, No. 122, Luoshi Road, Wuhan, 430070, P.
Daniel, Effects of material and geometric nonlinearities on the tensile and compressive behavior of composite materials with fiber waviness, Composites Science and Technology 61 (2001) 125-134
Chou, Flexible composites, Journal of Materials Science 24 (1989) 761-783
Chou, Effect of fiber waviness on the nonlinear elastic behavior of flexible composites, Journal of Composite Materials 22 (1988) 1004-1025
Daniel, Fabrication methods for unidirectional and crossply composites with fiber waviness, Journal of advanced materials 26 (1995) 19-26

The original and immersed materials were cut into the smaller samples whose size were 4.5 mm×4.5 mm, as shown in Fig. 1 and Fig. 2.
Secondly, referring to morphology characteristics in previous SEM images and the equalized histograms, different materials and image background segmentation thresholds were gained.
Liu, Experimental research on waterproof performance damage of waterproof membrane under the mechanical circumstance in tunnel, Journal of Building Materials. 13 (2010) 487-491 [5] Q.X.
Yang, CT image artifacts and its solution, Journal of Mathematical Medicine. 22 (2009) 206-210 [7] Q.X.
Zheng, Experimental study of CT test on the failure of acrylate spray-applied waterproof layer in the groundwater environment, Science China·Technological Sciences. 53 (2010) 512-518

Absorption of electromagnetic wave (EMW) occurs in magnetic materials due to the magnetic loss.
So they are one of the best materials for microwave absorbers.
Trukhanov, “Magnetic and magnetotransport properties of La12-xBaxMnO3x/2 perovskite manganites,” Journal of Materials Chemistry, no. 13, p. 347–352, 2003
Sharifi dan H.Shokrollahi, “Structural, Magneticand Mossbauer evaluation of Mn substituted Co–Zn ferrite nanoparticles synthesized by co-precipitation,” Journal of Magnetism and Magnetic Materials, no. 334, pp. 36-40, 2013
Naresh, “Structure, ac conductivity and complex impedance study of Co3O4 and Fe3O4 mixed spinel ferrites,” International Journal of Engineering, Science and Technology, vol. 2, no. 8, pp. 40-52, 2010

Industrial solid waste is Grade I fly ash, and we also use other self-made materials for stimulating fly ash's activity.
So, acicular materials can be asserted as ettringite.
Journal of Environmental Management, No 6 (2010),p: 2322-2328
Composites Part A: Applied Science and Manufacturing, Vol 39 No 6 (2008),p:930-939
Journal of Chang’an University(Natural Science Edition) ,Vol 29 No 3 ( 2009),p: 11-14.

The 36th volume of the journal "Advanced Engineering Forum" contains peer-reviewed manuscripts depicting the engineering solutions and research results dealing with contemporary problems in applied materials science, mechanical engineering, building engineering, applied mechanics, power engineering and engineering management.

Experimental 2.1 Materials.
Journal of Materials Chemistry, 2011, 22(1):153-160
Journal of Wuhan University of Technology Materials Science, accepted in printing
Journal of Mining Science and Technology, 2019, 4(6):558-563
Journal of Functional Materials and Devices, 2010, 16(1):6-10

Badawi Faculty of Science, Physics Department, El-Minia University, Egypt anasser_ak_62@yahoo.com Keywords: Aircraft Alloys, Electrical Measurement, Isothermal Annealing, Positron Annihilation Techniques Abstract Positron annihilation lifetime (PAL) is one of the most important nuclear techniques used in material science.
Electrical measurements are also used in material science.
Stott: Canadian Journal of Physics, 52 (1974) 759 [9] W.
Badawi: Journal of Materials Science and Engineering, 5[4] (2011) 400 [16] W.
Brown: Journal of Applied Physics, 22 (1951) 1012 [17] I.

Arabian Journal for Science and Engineering, 37, 291-301
Journal of materials in civil engineering, 11(4), 331-339
ACI Material Journal, 89(5), 449-455
Materials, 16(5), 2124
Journal of Materials Science, 49, 8057-8062.

Research on Plasma Electric Arc Granulation Processes of the Ural Region Mineral Raw Materials to Welding Materials for Submerged Arc Welding Stanislav V.
Technological features of the process, Metal Science and Heat Treatment, Vol. 58, Issue 1 (2016) 27-32
Lu, Spheroidization of eutectic silicon in direct-electrolytic al-Si alloy, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science, Vol. 44, Issue 6 (2013) 2799-2809
Key Engineering Materials, № 743 (2017) 406-410
Key Engineering Materials, № 743 (2017) 401-405