Three dimensional elasto-plastic constitutive relation for an 8-node EAS (Enhanced Assumed Strain) solid element | |
| Author | Sacharuck Pornpeerakeat |
| Call Number | AIT Thesis no.ST-05-03 |
| Subject(s) | Elastroplasticity Numerical analysis |
| 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 |
| Series Statement | Thesis ; no. ST-05-03 |
| Abstract | Recently solid element has become widely used because of the excellent properties of its lessDOFs compared with degenerated shell element as follows. (1) The solution convergence tends to be extremely slow in linear analysis and it fail to show the behavior of nonlinear analysis. (2) There are several locking problems in the plate and shell element. In this study, Enhanced Assumed Strain or EAS method will be applied to conventional 8 node compatible solid element. An 8-node element with 24 enhanced strain term and full integration which gives the same performance result with 30 enhanced strain terms and save time to store memory , computation respectively as XS. OLIDE24 A formulation based on virtual displacement principle is adapted for an application both material and geometrical nonlinearity including, coupling problem between solid and water skeleton name as Biots consolidation theory. Benchmark test and some numerical examples show that the element can be used successfully in application based on continuum element. All problems are solved with aneX. tended Version of FINAS (XFINAS) |
| Year | 2005 |
| Corresponding Series Added Entry | Asian Institute of Technology. Thesis ; no. ST-05-03 |
| Type | Thesis |
| School | School of Engineering and Technology |
| Department | Department of Civil and Infrastucture Engineering (DCIE) |
| Academic Program/FoS | Structural Engineering (STE) /Former Name = Structural Engineering and Construction (ST) |
| Chairperson(s) | Pichai Nimityongskul;Kidu, Kim; |
| Examination Committee(s) | Worsak Kanok-Nukulchai; |
| Scholarship Donor(s) | Royal Thai Government Fellowship; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 2005 |