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According to the motion features of abrasive particles and workpieces in centrifugal roller, considering the abrasive particles and workpieces as two kinds of ball particles with different materials and sizes, 3-Dimensional Discrete Element Method (DEM) was used to build the dynamics model of single abrasive particles and workpieces motion.
In this paper, considering the abrasive particles and workpieces as two kinds of ball particles with different materials and sizes, their dynamics models were built by DEM to analyze the influence of rotation-revolution ratio.
Vol. 1(2005), p.65-68 [4] Jinze Dong, Haocheng Wang: Journal of Tianjin Institute of Textile Science and Technology.
Vol. 25-2(2006), p86-88 [6] Taihong Zhang, Jiancheng Yang: Journal of Tianjin Institute of Textile Science and Technology.
Heyes: Chemical Engineering Science.

[4] Cui, W., Qin, G., Duan, J., and Wang, H., Materials Science and Engineering: C, 71 (2017), 520-528
K., Bhat, A., Bose, S., and Bandyopadhyay, A., Journal of the mechanical behavior of biomedical materials, 6 (2012), 9-20
[17] Shahriari, A. and Aghajani, H., Journal of Materials Engineering and Performance, 25(10), (2016), 4369-4382
[25] Vidakis, N., Antoniadis, A., and Bilalis, N., Journal of Materials Processing Technology, 143 (2003), 481-485
[28] Besra, L. and Liu, M., Progress in materials science, 52(1), (2007), 1-61

Kurzydlowski1 1 Warsaw University of Technology, Faculty of Materials Science and Engineering, Woloska 141, Warsaw 02-507, Poland 2 The Open University, Department of Materials Engineering, Walton Hall, Milton Keynes MK7 6AA, United Kingdom 3 The University of Manchester, Materials Performance Centre, Sackville Street Campus Manchester M60 1QD, United Kingdom Keywords: Digital Image Correlation, micro samples, mechanical properties, life assessment, pressure vessel steels.
Kwum: Materials Letters Vol. 58 (2003), p. 94-98 [2] G.
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Hernas: Journal of Materials Processing Technology Vol. 53 (1995), p. 101-108 [5] C.J.
Harling: Journal of Nuclear Materials Vol. 103 & 104 (1981), p. 1545-1550 [9] M.

Ariffinc Department of Mechanical & Materials Engineering, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia amiloud20@eng.ukm.my, bmuchtar@eng.ukm.my, ckamal@eng.ukm.my Keywords: Finite element methods, linear elastic fracture mechanics, adaptive refinement mesh, crack propagation.
Finite Element Analysis (FEA) combined with the concepts of Linear Elastic Fracture Mechanics (LEFM) provides a practical and convenient means to study the fracture and crack growth of the solid materials.
Owen: International Journal of Fracture Vol. 4 No.9 (1973), p. 471 [2] B.
Hamouine: International Journal of Material Science Vol. 2 (2007), p. 65 [5] S.
Tracey: International Journal of Fracture Vol. 12 (1976), p. 767

To validate that the abrasive tool with heat pipe can safely and steadily grind materials, the model analysis of abrasive tool with heat pipe is carried on with the ANSYS software based on the theory of modal analysis, then the first five order natural frequency and vibration models are to get.
In this case, element type is solid 8node185, material models include: elasticity modulus is 2E11, poisson's ratio is 0.3, and material density is 7800.
International Journal of Machine Tools & Manufacture, Vol. 42 ( 2002 ) No.5, p. 643
Journal of South China University of Technology ( Natural Science Edition ), Vol. 40 ( 2012 ) No.5, p. 13 ( In Chinese )
Journal of South China University of Technology ( Natural Science Edition ), Vol. 40 ( 2012 ) No.12, p. 47 ( In Chinese )

Table 1 describes the mechanical properties of the investigated materials.
The flow of the materials forms a huge pocket in the middle of the specimen.
Kato, Self-pierce riveting of multiple steel and aluminium alloy sheets Journal of Materials Processing Technology 214-10 (2014) 2002-2008
Kato, Joining of high strength steel and aluminium alloy sheets by mechanical clinching with dies for control of metal flow, Journal of Materials Processing Technology 212-4 (2012) 884-889
[9] Letsch, S.; Meschut, G.; Kuting, J.; Peitz, V. et al: „Mechanische Fügetechnik für die Mischbauweise, Teil 2 – Neuartige Fügeverfahren -, Schweißen und Schneiden 56, 2004, Nr. 10, pp. 518-526 [10] Hörhold, R.; Müller, M.; Merklein, M.; Meschut, G.: Specimen´s Geometry Related Influences on Load-Bearing Capacity of Joining Aluminium and UHSS by Innovative Shear-Clinching, 2017, Vol. 6, No. 4, Journal of Materials Science Research [11] Hörhold, R., Müller, M., Merklein, M., & Meschut, G.

Introduction One of the basic trends of automotive industry is the environmental impact reduction, in other words the consumption reduction due weight decreasing, which can be approached from materials science of view, by applying different high strength materials [1] (steels, aluminium alloys and composites).
Base materials and filler metals.
Siménfalvi, Determination of Power Consumption for Suspension Mixing in Stirring Equipments and Stirred Ball Mills, Journal of Materials Science and Engineering A, 2 (2012) No 7, 572-578
Suarez et al., Effects of Ultrasonics-Assisted Face Milling on Surface Integrity and Fatigue Life of Ni-Alloy 718, Journal of Materials Engineering and Performance, 25 (2016) 5076-5086
Lukács, Fatigue crack propagation limit curves for different metallic and non-metallic materials, Materials Science Forum, 414-415 (2003) 31-36

Schwetz, Boron carbide as neutron absorbent, Journal of Nuclear Materials 124 (1984) 175–184
Werheit, Boron rich solids—a chance for high-efficiency hightemperature thermoelectric energy conversion, Materials Science and Engineering B 29 (1995) 228–232
Kennedy, “The microstructure and mechanical properties of Al-Si-B4C metal matrix composites”, Journal of materials Science 37 (2002) 317-323
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Hashim , L Looney , M.S.J .Hashmi “Metal matrix composites: production by the stir casting method “ , Journal of material processing science , Volume 92-93 , 30 August 1999, 1 – 7 [13] I.A.Ibrahim ,F.A.Mohammed , E.J.Lavernia ,”Particulate reinforce metal matrix composites: review” ,Journal of material science (26) , 1991 , 1137 – 1156 [14] R.K.Garg, K.K.Singh , Anish sacheva ,” Review of research work in sinking EDM and WEDM on metal matrix composite materials” Int J Adv Manuf Technol (2010) 50:611–624

The heat release volatiles of Cunninghamia lanceolata biomass might be used as raw materials of bioenergy, rare biomedicines, and so on.
Materials and Methods Materials and Methods.
What's more, the heat release volatiles can be used as raw materials of bioenergy and chemical industry.
Shifeng: Journal of Fujian Forestry Science and Technology Vol.36(2009), p.9-11 [3] F.
Deyong: Journal of Fujian Forestry Science and Technology Vol.35(2008), p.267-269 [4] H.

What a filter tip’s filtration effect exactly is and what the relationship between the filtration effect and materials used, and what the relationship between the filtration effect and the length of the filter is are three problems worthy to be studied.
What is the relationship between the filtration effect and materials used?
But the absorption rate of a filter is decided by the filter materials.
International Journal of Theoretical Physics Vol. 53(2014), p. 3698 [10] Z.B.
Journal of Nonlinear Science and Numerical Simulation Vol.11 (2010), p.