재료의 나노인덴테이션 변형 거동과 3차원 유한요소해석

김지수; 양현윤; 윤존도; 조상봉; Jisoo Kim; Hyeonyun Yang; Jondo Yun; Sangbong Cho

Korean Journal of Materials Research, Vol.14, No.6, 436-442, June, 2004

DOI10.3740/MRSK.2004.14.6.436 Export Citation

재료의 나노인덴테이션 변형 거동과 3차원 유한요소해석

Deformation Behaviors of Materials during Nanoindentation Test and Simulation by Three-Dimensional Finite Element Analysis

김지수, 양현윤¹, 윤존도 ^{2, †}, 조상봉³

경남대학교 대학원 재료공학과
¹경남대학교 대학원 기계설계학과
²경남대학교 신소재공학부
³경남대학교 기계자동화공학부

Jisoo Kim, Hyeonyun Yang¹, Jondo Yun^{2, †}, and Sangbong Cho³

Department of Materials Engineering, Graduate School, Kyungnam University, Korea
¹Department of Mechanical Design Engineering, Graduate School, Kyungnam University, Korea
²Department of Advanced Materials Engineering, yungnam University, Korea
³Department of Mechanical Automation Engineering, Kyungnam University, Weolyeong-dong, Masan, 631-701, Korea

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Elastic and plastic deformation behaviors of the high purity aluminum and the silica glass were studied using nanoindentation and finite element analysis(FEA) techniques. Berkovich- and cone-type indenters were used for the nanoindentation test. Deformation behaviors and nanoindent profiles of elastic, elastic-plastic or plastic materials were clearly visualized by FEA simulation. Effects of the penetration depth and strain hardening on the deformation behavior were examined. Pile-up and sink-in behaviors were studied by using FEA technique. Degree of pile-up or sink-in was found to be a function of the ratio of elastic modulus to yield strength of materials. FEA was found to be an effective method to study deformation behaviors of materials under nanoindentation, especially in the case when pile-up or sink-in phenomena occurred.

Keywords:nanoindentation;finite element analysis;pile-up;sink-in;deformation profile

[References]

Fischer-Cripps AC, Springer-Verlag New York, Inc., New York, USA (2002) (2002)
Kim B, Yun J, Kim J, Korean J. Mater. Res., 13(9), 606 (2003)
Kim B, Master's thesis, Kyungnam University, Korea (2001) (2001)
Yun J, Ceramist, 5(2), 8 (2002)
Oliver WC, Pharr GM, 1992, 'An Improved Technique for Determinating Hardness and Elastic Modulus Using Load and Displacement Sensing Indentation Experiments,' J. Mater. Res., Vol 7, No. 6, pp. 1564-1583 (1992)
McElhaney KW, Vlassak JJ, Nix WD, J. Mater. Res., 13(5) (1998)
Pearson TG, Metall. Rev., 2(8), 32 (1957)
Cheng YT, Cheng CM, Philosophical magazine letters, 78(2), 115 (1998)
Bolshakov A, Pharr GM, J. Mater. Res., 13(4) (1998)
Zacharia TT, Pharr GM, Mat. Res. Soc. Symp. Proc., 522, 33 (1998)

[Related Articles]

[1] Fischer-Cripps AC, Springer-Verlag New York, Inc., New York, USA (2002) (2002)

[2] Kim B, Yun J, Kim J, Korean J. Mater. Res., 13(9), 606 (2003)

[3] Kim B, Master's thesis, Kyungnam University, Korea (2001) (2001)

[4] Yun J, Ceramist, 5(2), 8 (2002)

[5] Oliver WC, Pharr GM, 1992, 'An Improved Technique for Determinating Hardness and Elastic Modulus Using Load and Displacement Sensing Indentation Experiments,' J. Mater. Res., Vol 7, No. 6, pp. 1564-1583 (1992)

[6] McElhaney KW, Vlassak JJ, Nix WD, J. Mater. Res., 13(5) (1998)

[7] Pearson TG, Metall. Rev., 2(8), 32 (1957)

[8] Cheng YT, Cheng CM, Philosophical magazine letters, 78(2), 115 (1998)

[9] Bolshakov A, Pharr GM, J. Mater. Res., 13(4) (1998)

[10] Zacharia TT, Pharr GM, Mat. Res. Soc. Symp. Proc., 522, 33 (1998)