zero lenght element performance

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behzad1980
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zero lenght element performance

Post by behzad1980 »

Hi,
1-Could u please tell me whether it is important to define i node as a master node and j node as a slave node in zero lenght element or not?

2-How can Opensees recognize that two nodes become close to eachother or far in zero lenght element?

3-Is positive local axes in zero lenght element in direction of axes whitch connect i node to j node?

Thanks
fmk
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Post by fmk »

1. no .. it is a regular element .. a truss w/o length.

2. it will spit out a warning if they are not close, but it doesn't matter .. again the distance between nodes does not come into the equations .. remember it's a truss w/o length

3. yes,
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