کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
514685 | 866794 | 2011 | 15 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: A FEM procedure based on positions and unconstrained vectors applied to non-linear dynamic of 3D frames A FEM procedure based on positions and unconstrained vectors applied to non-linear dynamic of 3D frames](/preview/png/514685.png)
This study presents an alternative three-dimensional geometric non-linear frame formulation based on generalized unconstrained vector and positions to solve structures and mechanisms subjected to dynamic loading. The formulation is classified as total Lagrangian with exact kinematic description. The resulting element presents warping and non-constant transverse strain modes, which guarantees locking-free behavior for the adopted three-dimensional constitutive relation, Saint-Venant–Kirchhoff, for instance. The application of generalized vectors is an alternative to the use of finite rotations and rigid triad's formulae. Spherical and revolute joints are considered and selected dynamic and static examples are presented to demonstrate the accuracy and generality of the proposed technique.
Journal: Finite Elements in Analysis and Design - Volume 47, Issue 4, April 2011, Pages 319–333