Indentation test method and indentation test apparatus
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United States of America Patent
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Mar 29, 2016
Grant Date -
Jan 26, 2012
app pub date -
Jan 18, 2010
filing date -
Jan 20, 2009
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Abstract
A novel indentation test apparatus is provided. The indentation test apparatus is an apparatus for indenting a specimen with a spherical indenter. The indentation test apparatus includes a specimen thickness identifier) that identifies the thickness of the specimen, an equivalent indentation strain calculator that calculates equivalent indentation strain of the specimen by using the thickness of the specimen, and a Young's modulus calculator that calculates Young's modulus of the specimen by using the equivalent indentation strain. Young's modulus E of the specimen preferably ranges from 100 Pa to 100 MPa. The diameter of the spherical indenter preferably ranges from 1×10−8 to 1 m.
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