2D beam element - stiffness matrix

Hello,


I would like to model a 2D beam element with 3 DOF in each node (horizontal and vertical displacement and rotation). My model consists of 1 element and 2 nodes.

Ansys seems to model the beam element in 3D with 6 DOF in each node as seen by the 12by12 stiffness matrix as attached (Ansys stiffness matrix).

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Can you help me to model the beam in 2D so that the stiffness matrix is a 6by6 stiffness matrix as shown in the picture attached (2D element stiffness matrix)?

Best regards,

Emilie

Answers

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