BROWSE

Related Researcher

Author

Kim, Ju-Young
Robust Multifunctional Materials Lab
Research Interests
  • Flexible / stretchable devices, nano-mechanics, nanoporous metal, materials reliability

ITEM VIEW & DOWNLOAD

Extended expanding cavity model for measurement of flow properties using instrumented spherical indentation

Cited 2 times inthomson ciCited 0 times inthomson ci
Title
Extended expanding cavity model for measurement of flow properties using instrumented spherical indentation
Author
Kang, Seung-KyunKim, Young-CheonKim, Kyg-HwanKim, Ju-Young
Keywords
Elastic-plastic Material; Expanding cavity models; Instrumented indentation; Metallic material; Plastic constraints; Spherical indentations; Strain-hardening exponent; Uniaxial tensions
Issue Date
201310
Publisher
PERGAMON-ELSEVIER SCIENCE LTD
Citation
INTERNATIONAL JOURNAL OF PLASTICITY, v.49, no., pp.1 - 15
Abstract
We propose an extended expanding cavity model (ECM) in instrumented spherical indentation to evaluate flow properties measured in uniaxial mechanical testing. We describe the mean pressure of the projected surface from radial stress at the hemispherical core boundary with a scaling factor for strain-hardening metals. Plastic constraint factors determined by the strain-hardening exponent, yield strain and scaling factor successfully illustrate flow stress-strain points in uniaxial tension tests. We suggest a novel way to determine the strain-hardening exponent from the ratio of indentation loading slope, and a modified Meyer relation to measure yield strengths.
URI
http://scholarworks.unist.ac.kr/handle/201301/3259
DOI
http://dx.doi.org/10.1016/j.ijplas.2013.02.014
ISSN
0749-6419
Appears in Collections:
MSE_Journal Papers

find_unist can give you direct access to the published full text of this article. (UNISTARs only)

Show full item record

qr_code

  • mendeley

    citeulike

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

MENU