1D and 2D elements difference

[Dave001]

I saw a video that the 1D element is applied to rods or springs or any shape that has a uniaxial force acting on it , now I saw a problem of two trusses connected and at the connection point there are x and y forces and it is solved by 1D element also , So Does the 1D apply to uniaxial forces only or not as there is a difference between the video I saw and the problem ?

 

[Andries]

If the 1-D element is a rod it will only carry axial loads. The x and y forces you mention will include the components of the rod forces in the x-y coordinate system plus any external loads that may be applied to the grid at that point.
A pinned truss consists only of rod elements since they do not carry out-of-plane loads.

Andries

 

[ThomasH]

Hi

In simple terms,

1d element: line

2d element: surface

3d element: volume

0d element: point

Thomas

 

[rb1957]

1D elements can be rods (axial loads only) or beams (axial and transverse).

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