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Abstract: Friction plug welding, a recent variation of friction welding is a process of joining of two similar or dissimilar materials.
Heat flux generation at intermediate surface is computed due to friction between the materials considering the co-efficient of friction.
Pre-heating of materials is varied in the certain range to find its effect on the temperature profile in the work piece.
Angela Jennifa Sujana, Numerical Simulation of Heat Flow in Friction Stud Welding of Dissimilar Metals, Arabian Journal for Science and Engineering, DOI 10.1007/s13369-013-0932-3
Meby Selvaraj, Finite element based thermal modelling of friction welding of dissimilar materials, International Journal of Modern Physics. 22 (2013) 196–202

During the service process of a P.C. bridge, the mechanical properties of materials (including concrete and steel) will deteriorate, and eventually result in the decrease of ultimate bearing capacity.
Material Degradation Model Degradation Model of Concrete.
The Material Nonlinearity.
For material nonlinearity, the key points are constitutive relations of material.
References [1] Niu ditao, Wang qinglin: Industrial construction Vol.25 No.6(1995), p. 36-38 (In Chinese) [2] Niu ditao: Journal of XI'AN University of Architecture &Technology Vol.27 No.1(1995), p.49-52 (In Chinese) [3] G K Glass, N R Buenfeld: Progress in Structural Engineering and Materials Vol.2 No.4(2001), p.448-458 [4] Kim Anh T.

These provide a reference for the project application of piezoelectric materials.
It makes piezoelectric simulation of ceramic materials be convenient and accurate.
Parameters of piezoelectric ceramic materials are needed to input which includes density, dielectric constant matrix ,elastic stiffness constant matrix and piezoelectric constant matrix, when piezoelectric materials are simulated by ANSYS.
The finite element simulation analysis of piezoelectric ceramic materials based on ANSYS[J].
Science & Technology Information，2009,NO.36:39~40

Which loess and fly ash collectively referred to as the main materials, cement, lime and gypsum are collectively referred to as auxiliary materials, main materials, auxiliary materials and admixtures collectively referred to as solid materials.
(3)the compressive strength of specimen is minimum with the weight ratio of auxiliary materials with solid material is 25% and achieve maximum while the ratio is 32%, therefore, the optimal range of the weight ratio of auxiliary materials with solid material is 30%~33%
The filling materials of no. 2 and 4 is gravity self-conveyor slurry and the filling materials of no. 8 and 9 is pump pressure conveying slurry
[3] Caizhi Zhao, Huaqiang Zhou and Jianbiao Bai:Journal of Liaoning Technical University Vol. 25 No. 6 (2006), p. 904.
[4] Feng Cui, Huaxing Zhang and Pengliang Liu:Coal Science and Technology Vol. 39 No. 2 (2011), p. 10.

Preparation of AASCM Materials Granulated blast furnace slag (GBFS), ground in a ball mill to the specific surface of 475m2/kg, can be classified as Grade S95.
Jiang, Alkali activated cementitious materials: mechanisms, microstructure and properties, Ph.D Thesis, The Pennsylvania State University, Ann Arbor, MI, USA, 1997
López de la Fuente, Alkali-activated cementitious materials: Alternative matrices for the immobilisation of hazardous wastes Part I.
Wang, High-temperature resistance performance of alkali- activated slag cementitious materials.
(Natural Science Edition), 37(2009) 96 -99 (in Chinese)

Research on utilizing Environmental Friendly Materials of Barrier Board for Particle Reduction of High-turbidity Raw Water Jian-Liang Chen1, a, Yi-Kuo Chang2,Yun-Hwei Shen 1, Kun-Liao Chen 1,b and Wun-Jiun Guo 1 1 Department of Resources Engineering, National Cheng Kung University, Tainan City 701, Taiwan 2 Department of Safety Health and Environmental Engineering, Central Taiwan University of Science and Technology, Taichung 406, Taiwan a1969liang@gmail.com, b c44514451@gmail.com Keywords: high-turbidity raw water, environmental friendly materials, barrier board treatment, particle reduction.
Chang; Journal of Environmental Engineering-ASCE, Vol.130 (12) (2004), p.1481-1487 [10] S.
Ahn: Water Science and Technology, Vol. 53 (7) (2006),p.191-197 [11] S.
K., Water Science and Technology , Vol. 50 (12) (2004), p. 245-253 [12] G.
Labonde, Journal American Water Works Association, Vol. 85 (12) (1993), p. 39-46

According to Bignozzia [10], sustainable building materials are usually based on recycling of proper waste that, thank to its own characteristics, can partially and/or entirely replace natural materials deriving from no-renewable resources.
Mixture name of the different composite materials were : P0 (without plastic waste), P6, P12 and P17.
Houivet: submitted and accepted to Environmental Engineering and Management Journal (EEMJ), (2013).
Senhadji, in: Proceedings of 2nd International Conference on Advances in Materials Science and Engineering (AMSE 2014), edited by: P.
Park, chapter, 1: Materials Science and Technology, October 1-2, Dubai, UAE, (2014), p. 3

One part of ingots was obtained with the use of only primary aluminum, secondary raw materials and secondary raw materials with the addition of primary aluminum.
Tokarski, Mechanical Properties of Solid-State Recycled 4xxx Aluminum Alloy Chips, Journal of Materials Engineering and Performance. 25 (2016) 3252-3259
Chen, Influence of Extrusion Temperature on Microstructure and Mechanical Properties of Mg-3Zn-2.5Al-2.5Ca Alloy, Journal of Hunan University Natural Sciences. 44 (2012) 14-19
Wang, Relationship among grain size, texture and mechanical properties of aluminums with different particle distributions, Materials Science and Engineering A. 753 (2019) 122-134
Carlberg, Influence of Heat Treatment on the Surface Structure of 6082 Al Alloys, Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science. 48 (2017) 5085-5094.

Mass transfer in the laser-interaction zone at selective laser melting influences the quality of the obtained material.
Materials and Methods For the experimental part of this work, it was used the selective laser melting setup equipped with fiber Nd:YAG laser that has a wavelength of 1064 nm and a system of laser beam scanning.
Acknowledgements This work has been financed by the sources of Russian Science Foundation (grant agreement №15-19-00254).
[4] Khmyrov R.S., Protasov C.E., Gusarov A.V., Influence of the conditions of selective laser melting on evaporation, MATEC Web of Conferences, EDP Sciences, 2018
J., Critical influences of particle size and adhesion on the powder layer uniformity in metal additive manufacturing, Journal of Materials Processing Technology, 266 (2019) 484-501.

Materials characterization.
Cho: Journal of Materials Letters Vol.18(8)(1999), p.655–658
Mizuno: Journal of Magnetism and Magnetic Materials.
Ahmed: Journal of Magnetism and Magnetic Materials Vol.290-291 (2005), p.1576–1579
Jiang: Journal of Magnetism and Magnetic Materials Vol323(12) (2011), p.1717-1721.