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“Y” or “V” cross section

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SebastianArc:
Just curious as I haven’t found much information out there regarding this kind of cross section, this was me just messing around with a failed yew bow, (badly seasoned , not worth my time haha) I’ve strung it up and seems to be bending quite well, albeit the bad wood.
I’ll try it again on a better piece of wood to really see how it holds up. Has anyone out there had some experience with this kind of cross section and how it went ??

Kidder:
No personal experience with it, but you are unnecessarily stressing the belly in compression with a design like that. The belly width is only a fraction of what the back is and all the compression forces will be focused at the peak. I would also imagine it would be very difficult to tiller that way as well - because of how narrow the belly is just a few scrapes will drastically impact your bend I believe.

I do believe Simson has made a belly ridged Osage bow successfully so I know it can be done, but his wasn’t as extreme as this. https://primitive-bows.com/osage-fumed-flattie-with-carved-handle-55-28-no-143/

Aksel:
Ive never seen that cross-section. Looks like a bike saddle. There are bows from the migration period with flat back, flat sides and a triangular belly. And many other strange cross sections from the past. Lots to discover  I believe.

Digital Caveman:

--- Quote from: Kidder on October 28, 2023, 02:43:03 pm ---No personal experience with it, but you are unnecessarily stressing the belly in compression with a design like that. The belly width is only a fraction of what the back is and all the compression forces will be focused at the peak. I would also imagine it would be very difficult to tiller that way as well - because of how narrow the belly is just a few scrapes will drastically impact your bend I believe.

--- End quote ---

Totally agree.  That's just asking for excessive stress concentrations along the ridge, even if you did manage to tiller it perfectly.  You could do test small samples if you're not sure though.

It looks like a pretty good cross section for stiff tips though.  It would be light and rigid.   

organic_archer:
The thin strip of wood farthest away from the neutral plane will take all the stress. Will it work? Perhaps. But not efficiently.

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