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Post-buckling Behavior of Elastic-Plastic Functionally Graded Beams Subjected to Eccentric Axial Load
| Content Provider | Semantic Scholar |
|---|---|
| Author | Nguyen, Dinh-Kien Gan, Buntara Sthenly Trinh, T. Alexandrov, Sergey |
| Copyright Year | 2015 |
| Abstract | This paper investigates the postbuckling behavior of elastic-plastic functionally graded (FG) beams subjected to an eccentric axial load by using the finite element method. The FG material is assumed to be formed from ceramic and metal with volume fractions varying in the thickness by a power-law function. TamuraTomota-Ozawa (TTO) model is used to evaluate the elastic-plastic properties of the beam material. A nonlinear finite element formulation is derived and used to construct the nonlinear equilibrium equations. An incremental-iterative procedure in combination with the arc-length method is employed in computing the load-displacement curves. Numerical results show that the postbuckling behavior of the beams plays an important role in the post-buckling behavior, and this deformation should be taken into consideration when studying the post-buckling behavior of the beams. A parametric study is carried out to highlight the effect of the volume fraction exponent and the eccentric ratio on the post-buckling behavior of the beams. Keywords—FG beam; elastic-plastic material; post-buckling behavior; eccentric axial load; finite element method |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://www.jmest.org/wp-content/uploads/JMESTN42350761.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
