Thermostructural Response of Aluminum Annuli
Final rept. Mar 76-Sep 77,
PHYSICS INTERNATIONAL CO SAN LEANDRO CA
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The thermostructural response of aluminum annuli subjected to sudden radiation heating was experimentally investigated using pulsed electron beams. The DNA OWL II generator, operating at a nominal mean voltage of 1.0 MeV, provided the radiation environment. Transport of the electron beam from the diode to the target was achieved using a longitudinal magnetic field. The annuli were irradiated uniformly on one side. Circumferential strain data were obtained on the outer diameter of the annuli at two locations 90 degrees apart. Problems with strain gauge survivability was encountered and a new strain guage design was developed especially for these experiments. Quartz guage stresstime measurements were performed on flat aluminum specimens simultaneously with the annulus experiments. The response was also observed with fast motion pictures 7000 framessec. Data were obtained at fluences that varied between 3 calsq. cm elastic response and 15 calsq.cm elastic-plastic response.
- Structural Engineering and Building Technology