2007-05-092007-05-091981HO, CHENG-YO. "THREE-DIMENSIONAL ASPECTS OF THE PLASTIC DEFORMATION OF ANISOTROPIC ROCKS." (1981) Diss., Rice University. <a href="https://hdl.handle.net/1911/15621">https://hdl.handle.net/1911/15621</a>.https://hdl.handle.net/1911/15621The method of plastic upper bound analysis is developed to solve problems involving three-dimensional loading and deformation of anisotropic materials. Experiments are conducted to evaluate the applicability of the analytical results. This method is also used to predict the effect of material strength properties on the lateral deviation force on a wedge during indentation of anisotropic plastic materials. The results show that the method does provide a fairly good upper bound for the indentation force and it also gives a reasonable explanation of the experimentally observed lateral deviation force.application/pdfengCopyright is held by the author, unless otherwise indicated. Permission to reuse, publish, or reproduce the work beyond the bounds of fair use or other exemptions to copyright law must be obtained from the copyright holder.Geological SurveyThesisTHESIS M.E. 1981 HO