Accession Number:

AD0623873

Title:

A SCATTERED LIGHT PHOTOELASTIC METHOD FOR INVESTIGATING STRESSES IN AXIALLY SYMMETRIC PROBLEMS UNDER LIVE LOADS,

Descriptive Note:

Corporate Author:

BOEING SCIENTIFIC RESEARCH LABS SEATTLE WASH

Personal Author(s):

• Cheng,Y. F.

Report Date:

1965-08-01

Pagination or Media Count:

17.0

Abstract:

A scattered light photoelastic method for investigating stresses in axially symmetric problems at room temperature under live loads is described. Using this method, observations are required in only one plane. A scattered light polariscope using a Helium-Neon continuous wave gas laser as the light source was designed and assembled. The stresses in a simply-supported thick circular plate having a free span diameter of 3-in and a thickness of 1-in subjected to a concentrated load at the center were studied. Complete stress distributions were given for two concentric cylindrical sections with radii of 0.3 and 0.84 inches respectively. Author

Descriptors:

• *PHOTOELASTICITY
• *POLARISCOPES
• TEST METHODS
• STRESSES
• DISKS
• LOADS(FORCES)
• NONDESTRUCTIVE TESTING
• LIGHT
• SCATTERING
• SHEAR STRESSES

Subject Categories:

• Test Facilities, Equipment and Methods
• Optics
• Mechanics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE