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Method of Determining Elastic Modulus

Summary

A method and apparatus of determining an elastic modulus of a material having a Poisson's ratio v by a Berkovich indenter having an elastic modulus E; a Poisson's ratio v, and a cross sectional area A(h) as a function of depth are provided. The method and apparatus model the Berkovich indenter with a conical shape and a spherical cap.

Supplementary Information

Patent Number: US7149634B2
Application Number: US2004756298A
Inventor: Ma, Dejun | Ong, Chung Wo
Priority Date: 14 Jan 2004
Priority Number: US7149634B2
Application Date: 14 Jan 2004
Publication Date: 12 Dec 2006
IPC Current: G01L000100 | G01N000342 | G06F001900 | G01N000300 | G01N000302
US Class: 702041
Assignee Applicant: The Hong Kong Polytechnic University
Title: Method of determining elastic modulus
Usefulness: Method of determining elastic modulus
Summary: For determining elastic modulus of material having Poisson's ratio using Berkovich indenter.
Novelty: Method of determining elastic modulus of material, involves calculating reduced elastic modulus of material by dividing nominal hardness with estimates

Industry

Measurement/Testing

Sub Group

Measurement Platform

Application No.

US2004756298A

Others

ONG Chung-wo
MA Dejun

Country/Region

USA

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