Skip to main content
SpringerLink
Log in

Dynamic strain measurement with the interferometric strain gage

Paper presents the details of optical measurement of dynamic strain over short gage lengths by use of the interferometric strain gage

  • Published:
Experimental Mechanics Aims and scope Submit manuscript

Abstract

The interferometric strain gage has a short gage length, high-frequency response and the capability of measuring large plastic strains. Furthermore, the gage is easily ruled directly onto the specimen, and no mechanical or electrical contact needs to be made during the measurement. These features make the interferometric strain gage particularly suitable for dynamic plastic-strain measurement.

In this paper, the details of an experimental setup for generating and measuring dynamic plastic strain are given. The photometric techniques of measuring the fringe motion of the interference patterns are describle as well as the data-reduction procedure. A typical result is presented, and the validity of the method is established.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Sharpe, W. N., Jr., “The Interferometric Strain Gage,”Experimental Mechanics 8 (4),164–170 (1968).

    Article  Google Scholar 

  2. Bell, J. F., “Diffraction-grating Strain Gage,”,Proc. of the SESA 17 (2),51–65 (1959).

    Google Scholar 

  3. Bell, J. F. “Propagation of Large-amplitude Waves in Annealed Aluminum,”Jnl. Appl. Phys. 31, (2), 277–282 (1960).

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dept. of Metallurgy, Mechanics and Materials Science, Michigan State University, East Lansing, Mich

    William N. Sharpe Jr. (Assistant Professor)

Authors
  1. William N. Sharpe Jr.
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Sharpe, W.N. Dynamic strain measurement with the interferometric strain gage. Experimental Mechanics 10, 89–92 (1970). https://doi.org/10.1007/BF02320138

Download citation

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02320138

Keywords

Search

Navigation