One-Dimensional Finite Elements by Andreas Öchsner & Markus Merkel

One-Dimensional Finite Elements by Andreas Öchsner & Markus Merkel

Author:Andreas Öchsner & Markus Merkel
Language: eng
Format: epub
Publisher: Springer International Publishing, Cham


Fig. 8.17Timoshenko bending element with quadratic shape functions for the deflection and the rotation: a deformation parameters; b load parameters

Solution

Evaluation of the general Lagrange polynomial according to Eq. (8.149) under consideration of 3 nodes yields the following shape functions for the deflection and the rotation:

(8.177)

(8.178)

(8.179)

With these shape functions the submatrices in Eq. (8.152) result as follows through analytical integration:

(8.180)

(8.181)



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