| Author | Tee, Beng Hock |
| Call Number | AIT Thesis no.ST-87-37 |
| Subject(s) | Elastic plates and shells
|
| Note | A thesis study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology |
| Publisher | Asian Institute of Technology |
| Abstract | A pseudo lagrangian formulation is introduced for large
deformation analysis of elasto- viscoelastic shells. The treatment
of the nonlinear shell employed a degeneration concept, which
treats the shell element as a continuum and shell assumptions are
applied after the discretization is made. Deformation
measurements expressed in the pseudo domain are well defined at
the beginning and the governing equations of the shell element are
automatically derived. For the material nonlinearity, a rate law
in conjunction with the isotropic Von Mises yield criterion are
used in computing the viscoelastic strain increments. To avoid
the difficulties in treating the finite rotations of s hell
problems , the shell element is described by an absolute
displacement of its mid-surface and a relative displacement of
its top-surface. The implicit time algorithm is used here for the
discretization in the time domain. The resulting discretize
nonlinear equations are solved by employing the Newton-Raphson
scheme.
Various integration scheme are used to obtain the bending
effects of the shell element, for the transverse shear term one
point Gauss quadrature is used .
Several illustrative examples are given to verify the
validity of the assumptions and the accuracy of the present
formulation method. |
| Year | 1987 |
| Type | Thesis |
| School | School of Engineering and Technology (SET) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Karasudhi, Pisidhi ;Worsak Kanok- Nukulchai
|
| Examination Committee(s) | Hasegawa Akio
|
| Scholarship Donor(s) | The Japanese Government |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |