Nonlinear Strain Measures, Shape Functions and Beam Elements for Dynamics of Flexible Beams
作者： I. Sharf
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摘要: In this paper, we examine several aspects of the development an explicit geometrically nonlinear beam element. These are: (i) linearization displacement field; (ii) effect a commonly adopted approximation for Lagrangian strain; and (iii) use different-order shape functions discretization. The issue rigid-body check element is also considered. An approximate introduced based on (approximate) intermediate strain measure. Several numerical examples are presented to support analysis. paper concludes with discussion elements multibody dynamics simulation.
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