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MA De-jun. Method for Determining Youngs Modulus by Applying Instrumented Indentation Hardness and Work[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2010, 46(9): 563-570.
Citation: MA De-jun. Method for Determining Youngs Modulus by Applying Instrumented Indentation Hardness and Work[J]. PHYSICAL TESTING AND CHEMICAL ANALYSIS PART A:PHYSICAL TESTING, 2010, 46(9): 563-570.

Method for Determining Youngs Modulus by Applying Instrumented Indentation Hardness and Work

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  • Received Date: December 15, 2009
  • The instrumented indentation tests were analyzed by employing dimensional theorem and finite element method. A combined Youngs modulus Ec, defined by Ec=1/[(1-ν2)/E+1.32(1-ν2i)/Ei] was introduced to accurately reflect the combined elastic effect of an indenter and an indented material, in which Ei and νi were the Youngs modulus and Poissons ratio of the indenter, and E and ν were those of the indented material. Consequently, an approximate relationship between the ratio of Oliver-Pharr hardness HO&P to the combined Youngs modulus Ec and the ratio of unloading work We to total work Wt in indentation was revealed by HO&P/Ec = Γ(We/Wt). Based on the relationship, a new method was then proposed for determining Youngs modulus of materials, and the effectiveness of the method was examined by several experimental examples. The results showed that the test precision of the method was higher than that of Oliver-Pharr method.
  • [1]
    PETHICA J B,HUTCHINGS R,OLIVER W C. Hardness measurement at penetration depth as small as 20 nm[J]. Phil Mag A,1983,48(4):593-606.
    [2]
    LOUBET J L,GEORGES J M,MARCHESINI O,et al. Vickers indentation curves of magnesium oxide (MgO)[J]. J Tribology,1984,106(1):43-48.
    [3]
    NEWEY D,WILKENS M A,POLLOCK H M. An ultra-low-load penetration hardness tester[J]. J Phys E:Sci Instrum,1982,15(1):119-122.
    [4]
    OLIVER W C,PHARR G M. An improved technique for determining hardness and elastic modulus using load and displacement sensing indentation experiments[J]. J Mater Res,1992,7(6):1564-1583.
    [5]
    OLIVER W C,PHARR G M. Measurement of hardness and elastic modulus by instrumented indentation. Advances in understanding and refinements to methodology[J]. J Mater Res,2004,19(1):3-20.
    [6]
    PHARR G M,OLIVER W C,BROTZEN F R. On the generality of the relationship among contact stiffness, contact area, and elastic modulus during indentation[J]. J Mater Res,1992,7(3):613-617.
    [7]
    DAO M,CHOLLACOOP N,VAN V K J,et al. Computational modeling of the forward and reverse problems in instrumented sharp indentation[J]. Acta Mater,2001,49(19):3899-3918.
    [8]
    PELLETIER H,KRIER J,CORNET A,et al. Limits of using bilinear stress-strain curve for finite element modeling of nanoindentation response on bulk materials[J]. Thin Solid Films,2000,379(1):147-155.
    [9]
    JOHNSON K L. Contact Mechanics[M]. Cambridge,UK:Cambridge University Press,1985:85-105.
    [10]
    ABAQUS:Version 6.2[CP]. Pawtucket,RI:Hibbitt, Karlsson & Sorensen,Inc,2001.

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