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Maximun Stress A Horn Bow Can Take?

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davidjw:
Practically speaking, I'd imagine Del is right, that the archer will be the limitation.  Perhaps the glue or wood, if the construction or materials were not up to par.  I think that since the core is supported by the horn and sinew, it can take the deformation of the bend without taking too much strain.  Adam mentions a 1/2" thick limb bending to a 3" radius and only taking set, which gives .83% tensile/compressive strain for the surface of the sinew and horn.  Perhaps if the bow was pulled beyond the aforementioned absolute maximum physical draw length, the tops of the tips would just be sliced off by the string.

joachimM:
Just browsing through some older topics:
It depends on humidity. Very dry sinew will tolerate less deformation, and may break at a strain of much less than 5% (which is typically the max strain in a turkish hornbow at 32”).

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