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Maximun Stress A Horn Bow Can Take?

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Ryan Jacob:
At what draw length, would, say, a 60ish pound 50 inch horn bow fail? And which would fail first, the sinew or the horn? Not planning on working on one now though I easily could start as I can readily get water buffalo horn and sinew, just out of curiosity

Aaron H:
Depends on who makes it and the quality of work performed.     ;)
 Too many variables for there to be a simple answer to that question.

All things being right, I believe horn will fail before the sinew.  I believe, & don't quote me on this, but sinew is supposed to stretch 8% before failure, and horn will compress 6% before failure.

Ryan Jacob:
I wonder if the glue would fail first...

Del the cat:
Or would it just stack to a point where the string is pulling in line with the limbs and the bow is effectively folded in half?
Bearing in mind the V high draw weights that these bows can achieve. I'd imagine a 60# bow would have a vast amount of flexibility...
So if bow is 50" and say string is 46" ...
The bow folded in half would be about say 22" from grip to tips and the string would be 23"when folded in half... so that gives 45" absolute maximum physical draw length. Would anything fail other than the archer? Maybe not!
Del

Aaron H:
If your glue is good and properly applied, then in theory the core will fail first.  A wooden core cannot take more than around 2% strain

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