Accession Number:

ADA564196

Title:

High Strain Rate Mechanical Properties of Glassy Polymers

Descriptive Note:

Interim rept. Apr 2010-Jul 2011

Corporate Author:

AIR FORCE RESEARCH LAB EGLIN AFB FL MUNITIONS DIRECTORATE

Personal Author(s):

• Jordan, Jennifer L.
• Siviour, C. R.
• Woodworth, B. T.

Report Date:

2012-07-25

Pagination or Media Count:

11.0

Abstract:

Since the early 1990s, a range of experimental data has been generated describing the response of glassy polymers to high strain rate loading in compression. More recently, research programs that study the combined effects of temperature and strain rate have made significant steps in providing better understanding of the physics behind the observed response, and also in modeling this response. However, limited data are available in tension, and even more limited are data describing both the compressive and tensile response of the same polymer. This paper investigates the compressive and tensile response of glassy polymers, using polyvinyl chloride as a representative material, across a range of stain rates from quasi-static to dynamic. The pressure dependant yield in glassy polymers will be discussed through comparison of the tensile and compressive yield stresses.

Descriptors:

• *COMPRESSION
• *GLASS
• *MECHANICAL PROPERTIES
• *POLYMERS
• *STRAIN RATE
• COMPRESSIVE PROPERTIES
• TENSILE PROPERTIES
• TENSION
• VINYL RADICALS
• YIELD

Subject Categories:

• Polymer Chemistry
• Fluid Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE