Method for measuring elastic properties

Details Method for measuring elastic properties Method for measuring elastic properties

2005-04-26

2005-04-26

Williams, Hezron (Department: 2856)

Measuring and testing

Hardness

By penetrator or indentor

C073S078000, C073S085000, C073S076000, C073S788000

Reexamination Certificate

active

06883367

ABSTRACT:
This invention relates to a method for measuring elastic modulus of a sample object. This invention also relates to a method for correcting creep effects in the modulus measurement. The error due to creep in the apparent contact compliance is equal to the ratio of the indenter displacement rate at the end of the load hold to the unloading rate. Determination of this error term and deduction of it from the measured contact compliance can be easily done at a low cost by modifying the data analysis software in any commercial depth-sensing indentation system.

REFERENCES:
patent: 3969928 (1976-07-01), Zarka
patent: 4699000 (1987-10-01), Lashmore et al.
patent: 4848141 (1989-07-01), Oliver et al.
patent: 5133210 (1992-07-01), Lesko et al.
patent: 5320800 (1994-06-01), Siegel et al.
patent: 5999887 (1999-12-01), Giannakopoulos et al.
patent: 6053034 (2000-04-01), Tsui et al.
patent: 6134954 (2000-10-01), Suresh et al.
patent: 6247355 (2001-06-01), Suresh et al.
patent: 6311135 (2001-10-01), Suresh et al.
patent: 20030099495 (2003-05-01), Look
Kunert, Maik, “Mechanical Properties on Nanometer Scale and Their Relations to Composition and Microstructure”, Apr. 28, 2000, Chapter 1, pp. 1-30.*
Wolf, Bodo, “Interference of Mechanical Properties from Instrumented Depth Sensing Indentation at Tiny loads and Indentation Depths”, 2000, Journal of Crystal Research Technology, vol. 35, No. 4, pp. 377-399.*
Asif et al., “Quantitative Imaging of Nanoscale Mechanical Properties Using Hybrid Nanoindentation and Force Modulation”, Aug. 1, 2001, Journal of Applied Physics, vol. 90, No. 3, pp. 1192-1200.*
Guo, Xiang-Dong, “Biomechanics and Remodeling of Trabecular Bone”, 2001, Advances in Biomechanics, pp. 120-129.*
“Creep Adjusted Modulus of Elasticity”, Downloaded from the Internet at http://www.tfhrc.gov/pavement/pccp/pdfs/valtm14.pdf.*
Dieter, George E., “Mechanical Metallurgy”, 1986, pp. 432-470.

Affiliated with

Also associated with

Rating

Method for measuring elastic properties does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for measuring elastic properties, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for measuring elastic properties will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3381053