When determining a balanced layup you should consider the core to be the mid point. So imagine a layup that is 4 layers, 2 before the core and 2 after the core. Example could be if using a 2x2 woven twill. Layer 1: 0/90 Layer 2: ±45 Core Layer Layer 3: ±45 Layer 4: 0/90 This is a guideline but depending on the use case you may not need to have it balanced. But I would recommend it. Edit: I have made several non structural cover panels that have been 'unbalanced' with in the above case only having 1 layer covering the core. So it really depends on the use case.
Short answer is no. You would just end up using the middle layer as your center point. So if you had a 5 ply layup for example you would be able to have: 1) 0/90 2) ±45 3) 0/90 4) ±45 5) 0/90 It gets a bit tricky if you aren't using woven twill and are used more unidirectional material or a core structure. But that's for a different video 😉
Unfortunately the amount of engineering required on that is a bit out if my scope. But knowing that the strength from carbon fiber is linear I would imagine a lot of unidirectional reinforcement would be required in the direction of load. I was once part of a project to make a robotic arm (like those used on a Mars rover) and eventhough it was mostly just a shroud, it still required an incredibly specific layup with carefully calculated angles of unidirectional fibers. But had a few layers of woven 2x2 twill on the outside and inside surfaces to tie it all together.
Please make more content. Your explanations are perfect.
Thank you for this on-point explanation.
Glad it was helpful! I do plan on continuing this series in the near future.
Man I wish you'd continue
Maybe in the near future, I've become distracted with other projects but hope to return to it soon.
Detailed explanation!
Thank You!
Keep the videos coming I just subscribed...
You have tons more to talk about and even projects to show
You videos seem to appear top result on youtube search... why did you stop?
Keep it coming whenever you can!
Real good vid mate. Whens the next one coming out
Love your videos! Hope you can keep filming this series!
Hope you are going to keep up the series 🤞
What would be a balanced layup if we have a core material in between,will we follow the same balancing technique?
When determining a balanced layup you should consider the core to be the mid point. So imagine a layup that is 4 layers, 2 before the core and 2 after the core. Example could be if using a 2x2 woven twill.
Layer 1: 0/90
Layer 2: ±45
Core Layer
Layer 3: ±45
Layer 4: 0/90
This is a guideline but depending on the use case you may not need to have it balanced. But I would recommend it.
Edit: I have made several non structural cover panels that have been 'unbalanced' with in the above case only having 1 layer covering the core. So it really depends on the use case.
So, my understanding is in order to have a balanced piece, you need always to have an even number of layers, is it?
Short answer is no. You would just end up using the middle layer as your center point. So if you had a 5 ply layup for example you would be able to have:
1) 0/90
2) ±45
3) 0/90
4) ±45
5) 0/90
It gets a bit tricky if you aren't using woven twill and are used more unidirectional material or a core structure.
But that's for a different video 😉
@@thecarbonfibernation Thanks for the clarification. Looking forward for the next video.
What would be the best layout for fibres on a helicopter stabiliser?
Unfortunately the amount of engineering required on that is a bit out if my scope. But knowing that the strength from carbon fiber is linear I would imagine a lot of unidirectional reinforcement would be required in the direction of load.
I was once part of a project to make a robotic arm (like those used on a Mars rover) and eventhough it was mostly just a shroud, it still required an incredibly specific layup with carefully calculated angles of unidirectional fibers. But had a few layers of woven 2x2 twill on the outside and inside surfaces to tie it all together.
@@thecarbonfibernation Ok thanks