Recent content by audacious1234

Hello, I have a composite panel (AL core 1.89" and AL face sheet 0.032" bonded with BMS 5-101, Type I, Grade 10) to be used on attendant partition with a 2 disbondings between core and face sheet. The disbonding size is 2” X 9” one away from edge and other disbonding of similar size near edge...

Thanks a lot for your reply. Divider and doghouse is one assembly there are two lower attachments through divider and two through doghouse. What I am intersted in is how much the loading will be on the joints between doghouse and divider due to 9G FWD loading condition etc. Please see attached...

Hello All, I am using FEMAP NX NASTRAN 9.3. Currently I am working on finite modelling of class divider and it is with dog house. I was wondering if anyone of you know how to get the joint loads between partition and doghouse? Please see attached for the picture and clarification of my problem...

Hello All, Question: I have a tensile modulus for a face sheet of honeycomb panel which is composed of 6 layers of phenolic (0/90/0/90/0/90). And I would like to calculate tensile modulus for individual layer. Is there any formula which calculates it? OR If I know value of modulus for an...

Seems like you dont have Roark. I didnt say I know bending moment I said I am looking for a way to calculate bending moment and I cant use Roark formula because it needs E value to get bending stress and thats the only formula I have. Roark doesnt have anything for bending moment. Thanks a lot...

Thanks for your reply. I know E doesnt belong to bending moment. But it is belong to bending stress and in Roark you will get bending stress not bending moment. Regards!

Thanks for all the replies but I didn’t get an answer related to my technical question. How should I calculate bending moment for a honeycomb panel all edges of the panels are simply supported? (E is not known so I can’t use Roark’s formulas for plates with all edges simply supported?). Thanks

That is what I am doing and asking seasoned engineer on this forum. Dont worry my approach is very conservative.

Hi, I am very green to this stress analysis field and I am hoping to get guidance from this forum. I am doing 777 floor panel strength substantiation. Floor panel material BMS4-20 Type III. Loading is console load from seats which in Z direction. For conservative analysis I am considering it as...