| Author | Ratnayake, Pushpachandra W. |
| Call Number | AIT Thesis no.ST-92-20 |
| Subject(s) | Plates (Engineering)--Mathematical models
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Civil Engineering
|
| Publisher | Asian Institute of Technology |
| Abstract | A finite element analysis of skew plates is carried out with respect to a skew coordinate system
and pseudo displacement components. Two four-node finite elements are developed based on
classical theory of thin plates and Mindlin' s plate theory. The thick plate element which employs
bilinear shape functions is improved to give acceptable results in thin plate regime, by incorporating
a selective integration scheme. Both elements are tested for their accuracy and convergence with
available results.
The plate element based on classical plate theory is modified to accommodate the macroelement
analysis of skew waffle slabs. An option is given to select either a four-node, eight-node or
twelve-node macroelement, depending on the accuracy requirement of the user.
The proposed macroelement is tested for its efficiency, versatility and convergence for some of
the practical problems, and results compared with available and conventional methods. It was
found that the proposed macroelement is remarkably efficient in terms of computer time and storage
while giving sufficient accuracy for most of the practical applications. Also the proposed
macroelement is equally accurate in analyzing rectangular plates with or without stiffeners. |
| Year | 1992 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-92-20 |
| Type | Thesis |
| School | School of Civil Engineering |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pisidhi Karasudhi |
| Examination Committee(s) | Pichai Nimityongskul;Yamaguchi, Hiroki |
| Scholarship Donor(s) | Government of Germany (DAAD) |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1992 |