A boundary element scheme for multi-layered porous half-space | |
| Author | Sribalaskandarajah, Kandiah |
| Call Number | AIT Thesis no. ST-88-24 |
| Subject(s) | Porous materials Finite element method |
| Note | A thesis 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 | An axisymmetric infinite element for saturated porous elastic layered halfspace is developed based on boundary integral equation formulation. The porous elastic medium is governed by Biot's three dimensional consolidation theory. The reciprocity relation for porous elastic media is used as the basis of the boundary integral equations. The required boundary integral equations are obtained in the Laplace transform space , based on the fundamental solutions of the governing equations, obtained from the Cheng ' s full space solution . The boundary integral equations are discretized using linear, quadratic and infinite boundary elements along the layer interfaces. These boundary infinite elements are coupled to a near fie l d finite element mesh to retain the advantages of both numerica l techniques. This makes the present formulation advantageous over the conventional infinite elements, using the finite element concept, because the exact far field behaviour is automatically satisfied. The numerical results, obtained in the Laplace transform space, are inverted using the Schaphery1s approximate inversion technique. This scheme is validated against the existing analytical and numerical solutions. |
| Year | 1988 |
| 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) | Worsak Kanok-Nukulchai ; |
| Examination Committee(s) | Karasudhi, Pisidhi ;Hasegawa Akio |
| Scholarship Donor(s) | Government of Netherlands ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1988 |