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Hi, Guys thanks for the reply. Since force out put is in global co-ordinates, I know the direction(tension or compression) for forces but for moment isn't the direction follow right hand cordinate system. Thanks

Hi All: I asked for forces and moments at a node from large nastran model. I do not have enough experince with FEA but I think nodal forces in nastran are based on global co-ordinate system,if this is true then I can decide whether the positive force is creating compression or tension based on...

Hi All: I am trying to understand the moment sign convention in the attached picture.In XY plane moment about Z axis is creating compression in upper flange but in the XZ plane moment about Y axis is creating tension in the upper flange. Is it right or am I understanding the right hand rule...

So is this the high stiffness which has resulted in higher load?

Hi all, Actually the stringer pad up thickness is considered in the FEA model thats why the model has higher area(80 % more than the drawing, without padup). The stringer is failing in net tension check. In my calculation I am considering the area of stringer without padup. Since the padup is...

Hi All, I do not have much experience with FEA.But I am trying to output stringer (axial) loads from Boeings in-house FEADMS tool. I observed actual drawing area for Stringer in the crown has lesser area than the FEADMS model area for one of the stringer. With this load and actual drawing area...

Hi All, How to output the element forces(CBAR)in F06 file. I requested for element forces in "output request" in PATRAN, but F06 file didn't output element forces.I can see element stresses, forces at SPC but NOT element forces for all the elements. Please some body spread some light on how to...

Hi, I saw the bulk data section of the NASTRAN user guid, its little bit confusing.It says Element X- axis is always from grid A to B. But when they show element forces in plane 1, Fx is action as tension on the element. So both axial and shear force and moment shown in these plane 1 and plane 2...

Hi, Thanks for the reply.I am using Nastarn. FEADMS(Boeings in house software) is my pre/post processor. To answer ur question I am extracting internal loads for these 1D elements. When I click shown axis button in pre processor for these C bar elements I can see X axis from node 1 to 2 and...

Hi all, I am new to FEA field.I prefer doing classical hand solution. I extracted force and moment from Cbar/Cbeam element from post processor. But I do not know whether moment I got is creating tension or compression on the top fiber of the beam. plsease help me with this. Thank you all

Hi all, I am new to FEA field.I prefer doing classical hand solution. I extracted force and moment from Cbar/Cbeam element from post processor. But I do not know whether moment I got is creating tension or compression on the top fiber of the beam. plsease help me with this. Thank you all