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FEM Simulation of the Effects of Mining on the Strength of a Structure BECKER - DAUGHERTY Lothar Department OCWFCS, Faculty of Civil Engineering, University “Politehnica” Timisoara, 1 Ioan Curea Street, 300224, Timisoara, Romania University of Applied Sciences Saar, Goebenstrasse 40, D-66117 Saarbruecken, Germany Engineer Office IFB-Becker, Hohe Wacht 15 A, D-66119 Saarbruecken, Germany petk6@yahoo.de Keywords: mining, displacement, destruction, mining-related shocks, FEM-numerical simulation, strength of a structure.
The comparative or equivalent maximal normal stress having the following form: σeq=σx+σy+σx-σy2+4τxy22 (1) Very interesting applications can be found on ceramics motor cases.
Becker Daugherty, Aspects of seismic hazards caused by the Mining, International Journal of Engineering and Innovative Technology. 4, issue 4 (2014) 33-36
Becker Daugherty, Aspect of seismic hazard caused by the mining and its sequelae, Engineering Solutions and Technologies in Manufacturing, Applied Mechanics and Materials. 657 (2014) 664-668
Ghosh, Particle cracking in discretely reinforced materials with the Voronoi cell finite element model, International Journal of Plasticity. 14, issue 8 (1998) 805-827.

The design of the fatigue specimens For ultrasonic fatigue machine, the vibration of the specimen is induced by a piezo-ceramic converter, which generates acoustical waves in the specimen through a power concentrator (horn) in order to obtain desired displacement and an amplification of the stress.
Fatigue and fracture engineering materia1 and structures, 1999, 22:667-672
[4] Bathias C．Piezoelectric fatigue testing machines and devices．International Journal of Fatigue, 2006, 28:1438-1445
Journal of Beijing University of Aeronautics and Astronautics, 2010, 36(4), 464-468
International Journal of Fatigue, 2006, 28:1583-1589

Alhajji, Mechanically assisted solid state mixing and park plasma sintering for fabrication of Bulk Nanocomposite (WC/(10Co/4Cr))- Based ZrO2 Systems, Journal of Materials Engineering and Performance, 26 (2016) 1540-1550
Journal of Refractory Metals and Hard Materials, 26 (2008) 48–54
Vleugels, ZrO2–WC nanocomposites with superior properties, Journal of the European Ceramic Society, 27 (2007) 1247–1251
Ruan, Preparation and sintering of WC–Co composite powders for coarse grained WC–8Co hard metals, International Journal of Refractory Metals and Hard Materials, 45 (2014) 80-85
Sherif El-Eskandarany, Mechanical Alloying for Fabrication of Advanced Engineering Materials, Elsevier Inc, Philadelphia, PA 19103-2899, the U.S.A, (2001)

International Journal of Coal Geology, Vol.75 (2008), p. 93-104. ,[]D X Li, X Y Song, Gong X X, et al.
ACI Journal , Vol.72 (1975), p. 159. ,[]K.Y.
Testing code of concrete for port and waterwog engineering.1998. ].
Journal of Building Materials, , Vol.1 (1998), p.30-35. ,[]Xu Zhong.
Journal of The Chinese Ceramic Society, Vol. 22,(1994), p.173-180. ].In this experiment, the passive film resistance of gangue blended cement is similar to OPC.

Acknowledgement We would like to appreciate Center of Excellence Geopolymer and Green Technology (CEGeoGTech), School of Materials Engineering, Universiti Malaysia Perlis.
V. (2002), Study on Engineering Properties of Fly Ash Based Geopolymer Concrete, Journal of the Australisian Ceramic Society, 38(1), pp. 44-47
M., (1999), Making Concrete ‘Greener’ with Fly Ash, Concrete International, 21(5), pp. 61-66
Australian Journal of Basic and Applied Science: pp. 1916-1922
M., Izzat, A.,(2012), “Fly ash porous material using geopolymerization process for high temperature exposure”, International Journal of Molecular Science, 13(4), 4388-4395

Journal of Asian Ceramic Societies, 6(3), pp.271-283
Ceramics International, 42(7), pp.9287-9291
Journal of the American Ceramic Society, 105(5), pp.3226-3237
Advances in Civil Engineering, 2021
Procedia engineering, 148, pp.189-193.

Wettability, Electrical and Mechanical Properties of 99.3Sn-0.7Cu/Si3N4 Novel Lead-free Nanocomposite Solder Mohd Arif Anuar Mohd Salleh1, a, Muhammad Hafiz Zan@Hazizi1,b, Zainal Arifin Ahmad2, Kamarudin Hussin1, Khairel Rafezi Ahmad1 1School of Materials Engineering, Universiti Malaysia Perlis (UniMAP), Perlis, Malaysia. 2School of Materials and Mineral Resources Engineering, Universiti Sains Malaysia, Penang, Malaysia.
International Journal of Minerals, Metallurgy and Materials Vol 16.
Journal of Physics 41
Journal of Alloys and Compounds. 436: 112-117 [9] Ramani Mayappan, A.B.
Material Science and Engineering A244.pg 113-126

Adamiak: Journal of Material Processing Technology 162163 (2005), p. 27 [2] J.W.
Yuan, Ch.H Peng: Materials Science and Engineering A252 (1998), p. 212 [3] M.
Ruiz-Navas, et al.: Journal of Material Processing Technology 155 (2004) p. 2002 [4] L.A.
Gür: Materials Scince and Engineering A361 (2003), p. 29 [6] S.
Murthy: Journal of Material Science Letter 20 (2001) p.793 [8] J.M.

Costa 1, f 1 UFCG, CCT, Departament of Materials Engineering - LabSMaC, zip code 10034, Campina Grande/PB, 58109-970, Brazil 2 UFRN, Postgraduation Program in Materials Sciences and Engineering, Natal/RN, Brazil. 3UFPE, Department of Chemical, Recife/PE, Brazil 4 UFSCar - Department of Materials Engineering, São Carlos/SP, Brazil a tati-sb@ig.com.br, b brauliosb@yahoo.com.br, csalvesjr@ufpe.br, druth@power.ufscar.br, e helio@dema.ufcg.edu.br, fanacristina@dema.ufcg.edu.br, Keywords: ZnO, europium, combustion reaction, luminescent materials Abstract.
The ZnO is a material with important applications, such as: solar protector [1], varistor [3], gas sensor [4], luminescent oxides [5], rubber, inks and ceramics [6].
Sousa et al: International Journal of Inorganic Materials Vol.1 (1999), p. 235
Jafelicci Jr: Journal of Alloys and Compounds Vol. 344 (2002), p.280
Kiminami: Journal of Metastable and Nanocrystalline Materials Vol. 22 (2004), p. 75

"Processing Routes to Macroporous Ceramics: A Review."
Journal of the American Ceramic Society 89(6): 1771-1789
The Journal of Adhesion 86(8): 859-873
Polymer-Plastics Technology and Engineering 50(2): 121-126
International Journal of Polymeric Materials 52(4): 251-264