03281nam a2200397 4500 20260818143141.0 310798 th eng .b10358869 AIT Thesis no.ST-86-21 Puswewala, Udeni Gnanapriya Anuruddha Infinite elements for quasi-statics of multi-layered saturated porous elastic half-spaces Bangkok : Asian Institute of Technology, 1986 48 p. Thesis ; no. ST-86-21 A thesis study submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Engineering and Technology Thesis (M.Eng.) - Asian Institute of Technology, 1986 The quasi-static behaviour of a saturated porous elastic half space loaded on the surface by a disk load is investigated using a finite element analysis scheme. The two types of loading considered are vertical and horizontal loads. The porous elastic medium is governed by Biot's consolidation theory. For the numerical analysis, a functional based on a variational principle deduced from Gurtin's principle for this class of problems is used. Fourier Expansion with respect to the angular coordinate is utilized to reduce the 3-D problem to a 2-D problem, since only systems with axial symmetry subjected to asymmetric loading are considered. The far field behaviour of displacements and pore pressure of the medium is investigated; based on this investigation, an appropriate porous elastic infinite element is introduced to model the far field of the domain, utilizing the concept of singular contraction to a parental finite element (an algorithm named FESC). Laplace transforms are used to remove the time dependence of the set of equations resulting from the first variation of the functional; Shapery' s inversion formula is used to obtain the inverse Laplace transforms, resulting in a system which avoids step-by-step computations for this transient problem. The good agreement of numerical results with already known analytical solutions validates the present scheme for use in the solution of more complicated consolidation problems. Finite element method Elastic analysis (Theory of structures) Karasudhi, Pisidhi, Chairpeson Worsak Kanok-Nukulchai, Examination Committee Brotton, Derick M., Examination Committee Norwegian Agency for International Development (NORAD), Norway, Scholarship Donor Asian Institute of Technology. Thesis ; no. ST-86-21 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B19757 .b10358869 mnait s 240402 2 951012 m a s 0 mnait mnarc 22 40 Barcode : 30050120686927 CREATED : 2014-04-21 RECORD # : i12790199 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050160012141 CREATED : 2016-07-04 RECORD # : i12926383 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 60104 60104 0 0 0 0 MAIN MAIN mnait 2026-08-18 50.00 0 AIT Thesis no.ST-86-21 30050120686927 2026-08-18 14:31:41 3 2026-08-18 22 0 0 0 0 MAIN MAIN mnarc 2026-08-18 0 AIT Thesis no.ST-86-21 30050160012141 2026-08-18 14:31:41 2026-08-18 40