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Experimental Study on K-Dominance of Static Crack Tip in Functionally Gradient Materials Xu Wei1, a, Yao Xuefengr2,b and Wu Linzhi1,c 1 Center for Composite Materials, Harbin Institute of Technology, Harbin 150001, China 2 Department of Engineering Mechanics, Tsinghua University, Beijing 100084, China a xuwei06@hit.edu.cn, byxf@mail.tsinghua.edu.cn, cwlz@hit.edu.cn Keywords: Functionally gradient materials; K-dominance; coherent gradient sensing; digital speckle correlation method; finite element method Abstract.
This research was supported by the Chinese Natural Science Foundation (No. 10602015, 10432030, 10502017, 10502018) CGS and DSCM Equations CGS Equation.
Erdogan: ASME journal of Applied Mechanics Vol. 50 (1983), p. 609 [2] F.
Ma: European Journal of Mechanics-A/Solids Vol. 23 (2004), p. 219 [5] C.E.
Tippur: International Journal of Solids and Structures Vol. 40 (2003), p. 1885 [7] V.B.

A microscale formulation for low-cycle fatigue degradation in heterogeneous materials is presented.
Multiscale modeling of polycrystalline materials: A boundary element approach to material degradation and fracture.
Modelling intergranular and transgranular micro-cracking in polycrystalline materials.
Mechanics of Materials, 117, 137-151, 2018 [23] Benedetti I, Gulizzi V, A grain-scale model for high-cycle fatigue degradation in polycrystalline materials, International Journal of Fatigue, 116, 90-105, 2018 [24] Jalalahmadi B, Sadeghi F, Peroulis D.
AIMS Materials Science 5 (1), 127-144

R. of China 2 Department of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, P.
Geng: Science and Technology of Advanced Materials, Vol. 2 (2001), p. 197
Thumann: Journal of Materials Processing Technology, Vol.117 (2001), p. 386
Xie: Science and Technology of Advanced Materials, Vol.2 (2001), p. 193
Li: Journal of Materials Processing Technology, Vol. 148 (1), (2004), p.25 [9] H.

Discs made of isotropic materials have been studied extensively with uniform and variable thickness up to now.
Functionally graded materials (FGMs) are a new kind of advanced structural composite materials and have attracted much attention because of their heat-resistance properties.
Zenkour, Elastic deformation of the rotating functionally graded annular disk with rigid casing, Journal of Materials Science, 42 (2007) 9717-9724
Zenkour, Stress distribution in rotating composite structures of functionally graded solid disks, journal of materials processing technology, 209 (2009) 3511-3517
Sciences, 29 (2005) 51-60

This is because the absorption of the silicon-based zeolite filter material to ammonia nitrogen tends to saturation and part of ammonia nitrogen which has been absorbed released from silicon-based zeolite filter material.
It can be seen by scanning electronic microscope that the filter material in the anoxic column covered by biological membrane appears black and the filter material in the aerobic column appears yellowish-brown.
(3) After the start-up finished，each column both the surface and interior of media are completely covered with a thick transparent layer of biofilm rich in species, which plays an important role in the degradation of pollutants. 5 ACKNOWLEDGEMENTS This work was funded by the National Scientific Foundation China (NSFC51178207), Shandong Provincial National Science Foundation (ZR2011EEM003), the Natural Science Foundation of Shandong Province (ZR2012EEL21).
Journal of Shenyang Jianzhu University (Natural Science), 2008, 24(5):828-831
Journal of Shenyang Jianzhu University (Natural Science), 2008, 24(6): 1035-1038

Polymer/Inorganic Composite Materials for Quick Repair of Cement Concrete Pavement Hua Ding1, a , Ruili Xiang 2 , Zhimin Song 2, b and Zili Yu 2, 3, c 1College of Chemistry, Sichuan University, Chengdu 610064, China 2Analytic & Testing Center, Sichuan University, Chengdu 610064, China 3Institute of materials Science & Technology, Sichuan University, Chengdu 610064, China asally-dd@163.com, b SSZZ69@163.com, cziliyu@163.com Keywords: Quick repair materials, polymer/inorganic materials, concrete pavement repair Abstract.
The optimized composite materials have been used as quick repair materials in the Chengyu (Chengdu to Chongqing) highway, southwest China.
Experiments 2.1 Materials What polymers be used in the repair materials for quick repair of cement concrete pavement is essentially important.
Different kinds of polymers and variable proportion of these materials may cause different properties of the repair materials.
Mohan: European Polymer Journal, Vol. 40 (2004), p. 2167 [4] K.

Meijboom, "Review of supported metal nanoparticles: synthesis methodologies, advantages and application as catalysts," Journal of Materials Science 2020 55:15, vol. 55, pp. 6195-6241, feb 2020
Ravikumar, "Anticancer activity of Ficus religiosa engineered copper oxide nanoparticles.," Materials Science & engineering.
Basri, "Review on recent advance biosynthesis of TiO2 nanoparticles from plant-mediated materials: characterization, mechanism and application," IOP Conference Series: Materials Science and Engineering, vol. 1142, p. 012005, apr 2021
Taghizadeh, "Green synthesis of iron oxide nanoparticles by aqueous leaf extract of Daphne mezereum as a novel dye removing material," Applied Physics A: Materials Science and Processing, vol. 124, may 2018
seed extract and their toxic potential against mosquito vectors and HeLa cancer cells," Materials Science and Engineering C, vol. 39, pp. 203-212, jun 2014

XFEM for Crack Propagation in Fiber-Reinforced Materials Yiling Pang, Duanming Dai Guangxi Polytechnic of Construction, Nanning 530004, China Keywords: fiber reinforced materials; XFEM; crack propagation Abstract.
Introduction Unlike metal materials, composite materials composed of different component such as fiber and matrix, and it is anisotropic, the failure process is very complex.
Rare Metal Materials and Engineering. 2007(5): 764-768
Fracture theory foundation, first ed., Science Press, Beijing, 2003
International Journal for Numerical Menthods in ENgineering.Int.

The Study of Dendrite Arm Spacing (DAS) on Acoustical of Tin Bronze 20Sn Alloy as Gamelan Bali Materials I.
K, Zhravel, L.V, Kochetkova, L.P, Structure and Damping Capacity of Br022 Bell Bronze, Journal Metal Science and Heat treatment,Vol.45, (2003), pp449-451
[4] Seah, K.H, Hemanth,J, Sharma, S.C,Effect of the Cooling Rate on the Dendrite Arm Spacing and the Ultimate Tensile Strength of Cast Iron, Journal of Material science 33 (1998), pp 23–8
[6] Askeland, D.RThe Science and Engineering of Materials, University of Misouri-Rolla, California, USA. 1984
[7] Halvaee, A.and Talebi, A., Effect of Process Variables on Microstructure and Segregation in Centrifugal Casting of C92200 Alloy, Journal of Materials Processing Technology 118, (2000) (2001) pp 123–127

Preparation of Porous lightweight Ceramics and Fibre Joining Materials Yingna Zhao1,2,a, Caifen Wang1, Hai Xu1 and Jiachen Liu1,b 1.School of Materials Science and Engineering of Tianjin University, Key Lab of Advanced Ceramics and Machining Technology of Ministry of Education, Tianjin China, 300072 2.School of Materials Science and Engineering, Hebei United University, Tangshan, Hebei, China, 063000 ayingna_1120@sohu.com, bjchl@tju.edu.cn Keywords: Porous lightweight ceramics; Silica fiber; AL-Si alloy; Joining Abstract.
Badini, Journal of the European Ceramic Society.
Hurtado, Journal of Nuclear Materials.
Ma, Materials Science and Engineering: B.
Journal of the Ceramic Society of Japan.