Accession Number:

AD0659489

Title:

HEATING OF SOLID RODS BY ULTRASOUND.

Descriptive Note:

Research rept.,

Corporate Author:

NAVAL WEAPONS CENTER CHINA LAKE CALIF

Personal Author(s):

Report Date:

1967-09-01

Pagination or Media Count:

19.0

Abstract:

Heating of rod-shaped materials by high-intensity ultrasound at 20 kHz is described. Results are presented as time-sequenced temperature profiles along a line parallel to the axis of the rod. The heat absorbed by the rod is calculated from these profiles and leads to a measure of the coupling efficiency. Temperature measurements are accomplished by infrared means and range from 250C--600C for steel, 50C--350C for aluminum, and 25C--50C for plastic. Regions of sonic stress are observed in plastic by employment of the principle of photoelasticity and show the coincidence of maximum stress with maximum temperature. Author

Subject Categories:

  • Air Conditioning, Heating, Lighting and Ventilating
  • Acoustics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE