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References 1. Abaqus 6.14 manual. 2. M. Bernat, A. Janowski, S. Rzepa, A. Sobieraj, J. Szulwic, "Studies on the use of terrestrial laser scanning in the maintenance of buildings belonging to the cultural heritage", Proceedings of the 14th Geoconference on Informatics, Geoinformatics and Remote Sensing, SGEM.ORG, Albena, Bulgaria, Vol. 3, pp 307-318, 2014. 3. J. Chróścielewski J., A. Mariak, A. Sabik, B. Meronk, K. Wilde, "Monitoring of concrete curing in extradosed bridge supported by numerical simulation", Adv. Sci. Technol. Res. J 10(32): 254-262, 2016. 4. J

. International Journal for Numerical Methods in Engineering , 89 (12), 1527–1558. doi: http://dx.doi.org/10.1002/nme.3299 German, J. (2011). Wprowadzenie do mechaniki pękania . Kraków: Politechnika Krakowska. Gigliotti, L. (2012). Assessment of the applicability of XFEM in Abaqus for modelling crack growth in rubber. Master Thesis, Sweden: Royal Institute of Technology. Leven, M.R., Daniel, R. (2012). Stationary 3D crack analysis with Abaqus XFEM for integrity assessment of subsea equipment. Master Thesis, Sweden: Chalmers University of Technology. Luo, R.K., Gabbitas, B

References ABAQUS/Explicit user’s manual. Version 6.7: vol.1(2), 2007. Arias A., Rodrı´guez-Martı´nez J.A. and Rusinek A. (2008): Numerical simulations of impact behavior of thin steelplates subjected to cylindrical, conical and hemispherical non-deformable projectiles. - Engineering Fracture Mechanics, vol.75, pp.1635-1656. Børvik T., Clausen A.H., Hopperstad O.S. and Langseth M. (2002): Perforation of 12mm thick steel plates by 20mm diameter projectiles with flat, hemispherical and conical noses, Part II: numerical simulations. - International Journal of Impact

[ 6 ] acting in these two areas are experimentally recorded with the help of thrust force dynamometer. The reaction forces at the tip of drill bit are recorded in simulation. This tip gives direct reaction force as the surface area at the tip is very minimal. Heat generated during drilling is assumed to be completely removed with the use of coolant. No heat models are considered in drilling simulation. 2 Model A 3D model is developed using the commercial finite element software Abaqus. The finite element model is based on Lagrangian formulation [ 4 ] with explicit

same change is incorporated into the tool in Abaqus model. The simulations are performed for three different sets of conditions and the results are validated. The cutting conditions are listed in Table 1 . Table 1 Cutting Condition. Description Speed (RPM) Feed (mm/rev) Depth of Cut (mm) Wear (mm) Condition 1 630 0.16 0.2 0 Condition 2 630 0.16 0.5 0 Condition 3 630 0.16 0.2 0.4 2 Finite Element Simulation Researchers have used numerical simulations for studying various structural and flow phenomena [ 5 , 6 , 7 , 8 , 9 ]. Finite element simulation has been very

References 1. Kubik J.: Mechanika konstrukcji warstwowych , Opole, TiT 1993. 2. Mirianon F., Fortino S., Toratti T.: A method to model wood by using ABAQUS finite element software , VTT Publications 687, VTT Technical Research Centre of Finland, 2008. 3. Socha T.: Ocena wpływu obciaeñ długotrwałych na naprêenia i odkształcenia w drewnianych belkach z wklejonym zbrojeniem kompozytowym , Maszynopis rozprawy doktorskiej, Uniwersytet Zielonogorski 2005.

1993. 4. Mirianon F., Fortino S., Toratti T.: A method to model wood by using ABAQUS finite element software, VTT Publications 687, VTT Technical Research Centre of Finland, 2008. 5. Socha T.: Ocena wpływu obciążeń długotrwałych na naprężenia i odkształcenia w drewnianych belkach z wklejonym zbrojeniem kompozytowym, Maszynopis rozprawy doktorskiej, Uniwersytet Zielonogórski 2005. 6. Żaboklicki A.: Wzmacnianie konstrukcji drewnianych zwłaszcza zabytkowych za pomoca kompozytow polimerowych, w: Sympozjum Naukowe Drewno i materiały drewnopochodne w konstrukcjach

References 1. Abaqus 6.12 “Analysis User’s Manual”, 2012 2. G. Duvaut, J. L.Lions: “Inequalities in Mechanisc and Physics”, Springer Berlin Heidelberg, Germany, 1976 3. “EN 1992-1-1: Eurocode 2: Design of concrete structures - Part 1-1: General rules and rules for buildings” 4. A. Genikomsou, M. A. Polak: “FEA of RC slabs under static and cyclic loadings based on damage plasticity model”, The 8th International Conference AMCM 2014 Wrocław, Proceedings, 210-218, Wrocław, Poland, 2014 5. T. Jankowiak: “Kryteria zniszczenia betonu poddanego obciążeniom quasi

] BOLTON M.D., The strength and dilatancy of sands, Geotechnique, 1986, 36(1), 65-78. [14] JAMIOLKOWSKI M., LO PRESTI D.C.F., MANASSERO M., Evaluation of relative density and shear strength of sands from CPT and DMT, [in:] Soil behavior and soft ground construction, 2003, 201-238, ASCE. DOI: 10.1061/40659(2003)7. [15] Dassault Systèmes. (2013). Abaqus User Manual Version 6.13. [16] YU M.-H., MA G.-W., QIANG H.-F., ZHANG Y.-Q., Generalized Plasticity, Springer, Berlin, 2006, DOI: 10.1007/3-540-30433-9. [17] TOMLINSON M., WOODWARD J., Pile design and Construction Practice

soft clay , Transactions of the American Society of Civil Engineers, 1950, 115(1), 275–285. [5] D ai Z.H., Q in Z.Z., Numerical and theoretical verification of modified cam-clay model and discussion on its problems , Journal of Central South University, 2013, 20, 3305–3313, DOI: 10.1007/s11771-013-1854-7. [6] Dassault Systémes, 2013, Abaqus 6.13 Analysis User’s Guide , Dassault Systèmes. [7] D onea J.H., H uerta A., P onthot J.-P h ., R odríguez F erran A., Arbitrary Lagrangian–Eulerian Methods , [in:] Encyclopedia of Computational Mechanic , Vol. 1