"The purpose of this investigation was to determine if photoelastic coatings could be adapted to soil systems and used as a workable tool for analyzing deformation and stress distribution. The required physical properties of a photoelastic coating on soil is discussed and a number of photoelastic materials are investigated as possible soil coatings. Mixing procedures, coating application techniques, curing methods, testing procedures, and results are discussed for gelatin and several plastics. Compacted soil samples and extruded soil samples from a Vac-Aire extrusion device were coated with reflective and photoelastic coatings and then loaded in an unconfined compression machine. The stress changes in the photoelastic coatings were then correlated to stress-strain data measured during the test. Photographs were taken during the loading process to obtain a record of the stress changes in the photoelastic coating. Test results indicated that many of the materials were not applicable as photoelastic coatings for study of soils. The presence of moisture and possibility of changes in the moisture content in the soil prevented the proper curing of many photoelastic materials investigated. The tests demonstrated that gelatin and some plastics are adaptable photoelastic coatings because they indicate the stress distribution in a loaded soil mass. It is concluded that further investigations are necessary before photoelastic coatings can be used as a tool in qualitative studies for analyzing deformation and stress distribution in soil systems"--Abstract, page ii-iii.
Aughenbaugh, N. B.
Armstrong, James C.
Heagler, John B., 1924-1999
Geosciences and Geological and Petroleum Engineering
M.S. in Geological Engineering
University of Missouri--Rolla
vii, 68 pages
© 1969 James Kenneth Meisenheimer, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
Strains and stresses
Print OCLC #
Electronic OCLC #
Link to Catalog Recordhttp://laurel.lso.missouri.edu/record=b1067353~S5
Meisenheimer, James Kenneth, "An investigation of the application of photoelastic coatings to soil studies" (1969). Masters Theses. 5296.