Location

Snowbird, UT, USA

Start Date

1-1-1999 12:00 AM

Description

The development of modeling efforts to simulate the high strain, high strain rate events that occur as a structure is impacted by a projectile requires a large number of variables to accurately determine the behavior of a material under such physical conditions. Amongst the parameters that must be included in such a model is the equation of state, which describes the change in material properties as a function of pressure. For many materials, the equation of state can be obtained by using a shock wave method which requires that the material be subjected to an impact by a metallic plate traveling at very high velocities by means of a gas gun [1]. To obtain meaningful information from such a test, the material that is impacted must plastically deform. Therefore, the testing of brittle materials, such as concrete, yields limited amounts of meaningful data as the samples fail before the completion of the experiment.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

18B

Chapter

Chapter 6: Materials Characterization

Section

Construction Materials

Pages

1927-1934

DOI

10.1007/978-1-4615-4791-4_246

Language

en

File Format

application/pdf

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Jan 1st, 12:00 AM

Determination of the Equation of State of Concrete by Ultrasonic Methods

Snowbird, UT, USA

The development of modeling efforts to simulate the high strain, high strain rate events that occur as a structure is impacted by a projectile requires a large number of variables to accurately determine the behavior of a material under such physical conditions. Amongst the parameters that must be included in such a model is the equation of state, which describes the change in material properties as a function of pressure. For many materials, the equation of state can be obtained by using a shock wave method which requires that the material be subjected to an impact by a metallic plate traveling at very high velocities by means of a gas gun [1]. To obtain meaningful information from such a test, the material that is impacted must plastically deform. Therefore, the testing of brittle materials, such as concrete, yields limited amounts of meaningful data as the samples fail before the completion of the experiment.