Three dimensional stress determination by photoelasticity.

• Main Author: Moore, John Raymond
• Other Authors: Mechanical Engineering
• Language: en_US
• Published: University of California 2012
• Online Access: http://hdl.handle.net/10945/6594

This thesis document was issued under the authority of another institution, not NPS. At the time it was written, a copy was added to the NPS Library collection for reasons not now known.  It has been included in the digital archive for its historical value to NPS.  Not believed to be a CIVINS (Civilian Institutions) title. === Stress determination by Photoelasticity has been used extensively for two dimensional problems. Certain poperties of photoelastic materials indicate that the photoelastic method might be used for three dimensional problems. The purpose of this paper is (1) to verify the properties of Bakelite BT (61-893) which make this material suitable for stress determination in three dimensions, (2) to determine photoelastically the difference in principal stresses in three mutually perpondicular planes in particular problems. Observations are made regarding techniques to be followed.