| Title |
Free Vibration Analysis of Plane Structures with Isogeometric Concept |
| DOI |
https://doi.org/10.5659/JAIK_SC.2019.35.9.171 |
| Keywords |
Isogeometric Analysis; Free Vibration; Plane Structure; NURBS; Natural Frequency; Multi-Patch |
| Abstract |
Isogeometric concept is introduced to carry out free vibration analysis of plane structures. The geometry of structures is represented by using
non-uniform rational B-spline surface (NURBS) and its basis function is consistently used in the formulation of plane stress element. In
addition, multi-patch strategy is introduced to deal with the openings in building. The performance of the present isogeometric plane stress
element is investigated by using five numerical examples. From numerical results, it is found to be that the isogeometric concept can
successfully identify reliable natural frequencies and associated mode shapes of plane structures with/without openings in efficient way. |