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_d12901
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008 210307s2003 -uaa|||| m||| 00| 0 eng d
040 _aEG-NcFUE
_erda
082 0 0 _221
_a615.1
_bD.E.E
100 1 0 _aDraganoiu, Elena S
_eauthor.
245 1 0 _aEvaluation of Kollidon SR for pH-independent extended release matrix systems /
_cElena S. Draganoiu .
264 1 _a Cincinnati, Ohio :
_bUniversity of Cincinnati,
_c2003.
300 _a198 pages :
_billustrations ;
_c23 cm.
336 _2rdacontent
_atext
337 _2rdamedia
_aunmediated
338 _2rdacarrier
_avolume
500 _aIncludes abstract
502 _aThesis (Ph.D.)--University of Cincinnati, 2003
504 _aIncludes bibliographical references
520 _aThe research work of this dissertation consists of two parts. The first part is the application of the finite element method (FEM) to nonlinear frictional contact stress analysis of full 3-D gear coupling models. To the author=92s best knowledge, no published work using the full 3-D finite element model of gear coupling is available in the literature. FEM models and processes have been developed in this thesis for the analysis of gear coupling with misalignment. The developed processes can be employed as a template to other gear models with different design parameters. They can also be expanded in more complex analyses such as fracture and thermo-elastic analyses. The second part of the research is on the development of two new boundary element algorithms for solving 3-D, frictional, and linear elastostatic contact problems. The main contribution of this research is that solving 3-D boundary element models with non-conforming discretizations becomes possible for the first time by using the proposed algorithms. These algorithms are implemented in a new 3-D boundary element code using C++ and verified using several numerical examples. For the models studied, the results using the new boundary element algorithms match well with the finite element results and clearly demonstrate the feasibility of the new boundary element approach for 3-D contact analysis
650 0 _aIndustrial Pharmacy
700 1 _aSakr, Adel Mohamed,
_esupervisor.
_933831
942 _2ddc
_cTHESIS