A Split Hopkinson Bar Technique to Determine Compressive Stress-Strain Data for Rock Materials

PDF Version Also Available for Download.

Description

We present a split Hopkinson pressure bar technique to obtain compressive stress-strain data for rock materials. This technique modifies the conventional split Hopkinson bar apparatus by placing a thin copper disk on the impact surface of the incident bar. When the copper disk is impacted by the striker bar, a nondispersive ramp pulse propagates in the incident bar and produces a nearly constant strain rate in a rock sample. Data from experiments with limestone show that the samples are in dynamic stress equilibrium and have constant strain rates over most of the duration of the tests. We also present analytical ... continued below

Physical Description

30 p.

Creation Information

FREW,D.J.; FORRESTAL,MICHAEL J. & CHEN,W. January 24, 2000.

Context

This article is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 140 times , with 8 in the last month . More information about this article can be viewed below.

Who

People and organizations associated with either the creation of this article or its content.

Sponsor

Publisher

  • Sandia National Laboratories
    Publisher Info: Sandia National Labs., Albuquerque, NM, and Livermore, CA (United States)
    Place of Publication: Albuquerque, New Mexico

Provided By

UNT Libraries Government Documents Department

Serving as both a federal and a state depository library, the UNT Libraries Government Documents Department maintains millions of items in a variety of formats. The department is a member of the FDLP Content Partnerships Program and an Affiliated Archive of the National Archives.

Contact Us

What

Descriptive information to help identify this article. Follow the links below to find similar items on the Digital Library.

Description

We present a split Hopkinson pressure bar technique to obtain compressive stress-strain data for rock materials. This technique modifies the conventional split Hopkinson bar apparatus by placing a thin copper disk on the impact surface of the incident bar. When the copper disk is impacted by the striker bar, a nondispersive ramp pulse propagates in the incident bar and produces a nearly constant strain rate in a rock sample. Data from experiments with limestone show that the samples are in dynamic stress equilibrium and have constant strain rates over most of the duration of the tests. We also present analytical models that predict the time durations for sample equilibrium and constant strain rate. Model predictions are in good agreement with measurements.

Physical Description

30 p.

Notes

OSTI as DE00750349

Medium: P; Size: 30 pages

Source

  • Journal Name: Experimental Mechanics; Other Information: Submitted to Experimental Mechanics

Language

Item Type

Identifier

Unique identifying numbers for this article in the Digital Library or other systems.

  • Report No.: SAND2000-0204J
  • Grant Number: AC04-94AL85000
  • Office of Scientific & Technical Information Report Number: 750349
  • Archival Resource Key: ark:/67531/metadc712215

Collections

This article is part of the following collection of related materials.

Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

What responsibilities do I have when using this article?

When

Dates and time periods associated with this article.

Creation Date

  • January 24, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

Description Last Updated

  • April 12, 2017, 12:44 p.m.

Usage Statistics

When was this article last used?

Yesterday: 0
Past 30 days: 8
Total Uses: 140

Interact With This Article

Here are some suggestions for what to do next.

Start Reading

PDF Version Also Available for Download.

International Image Interoperability Framework

IIF Logo

We support the IIIF Presentation API

FREW,D.J.; FORRESTAL,MICHAEL J. & CHEN,W. A Split Hopkinson Bar Technique to Determine Compressive Stress-Strain Data for Rock Materials, article, January 24, 2000; Albuquerque, New Mexico. (digital.library.unt.edu/ark:/67531/metadc712215/: accessed October 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.