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Beam Element in MSC NASTRAN

Dear All,

 

I am wondering about beam element in MSC NASTRAN.

How can a linear distribution of translation or rotation along a beam element produce a linear distribution of moment and constant shear force in a case of single tip force loading?  

What kind of beam element or beam theory used? I am not sure it is Timoshenko beam theory (which produce constant moment and linear shear force distribution)

 

I thank you in advance.

 

Best regards,

Sugeng  

Unloading prony series (soft tissue)

Hello All,

 

I am new here. I was searching for long time to find similar topics (see title) but nothing. 

So, it may be good to ask here.

 

My question is:

 Is it correct (for soft tissue) that prony series from relaxation test can be used to model "unloading" part of a cyclic test? If it is yes Why? 

   

I thank you in advance

 

Best regards,

Sugeng

 

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