Location

La Jolla, CA

Start Date

1-1-1998 12:00 AM

Description

We present experimental data on the stress-crazing of rubber-modified polystyrene under tensile load. The data were obtained by means of the simultaneous imaging of the infrared (IR) transmission through the sample, and the emission from it, during a uniform strain rate experiment. In addition, the stress and strain were also simultaneously measured and all of these results were correlated in time. Sharp changes are seen in the IR transmission and the emitted radiation at the yield point. These changes are attributed to the onset of the crazing. This crazing is detected by what amounts to “stress-whitening”, but in this case using IR radiation rather than visible radiation, to which the polymer is opaque.

Book Title

Review of Progress in Quantitative Nondestructive Evaluation

Volume

17A

Chapter

Chapter 1: Standard Techniques

Section

Thermal Wave Imaging

Pages

465-468

DOI

10.1007/978-1-4615-5339-7_60

Language

en

File Format

application/pdf

Share

COinS
 
Jan 1st, 12:00 AM

Infrared Imaging of a Stress-Crazed Polymer

La Jolla, CA

We present experimental data on the stress-crazing of rubber-modified polystyrene under tensile load. The data were obtained by means of the simultaneous imaging of the infrared (IR) transmission through the sample, and the emission from it, during a uniform strain rate experiment. In addition, the stress and strain were also simultaneously measured and all of these results were correlated in time. Sharp changes are seen in the IR transmission and the emitted radiation at the yield point. These changes are attributed to the onset of the crazing. This crazing is detected by what amounts to “stress-whitening”, but in this case using IR radiation rather than visible radiation, to which the polymer is opaque.