I am aware of the brick pattern horn used with horn crossbows. There is a good book, in German, Die Hornbogenarmbrust, by Holger Richter that shows historical examples of it and how to reconstruct one.
I have often wondered why they didn't use the method used for Asiatic horn composite flight , hunting and warbows, with the full length of horn, and a stiff wooden core, backed with sinew. Whether it was due to not getting enough draw weight, was my guess, I had not considered the potential for delamination, as I have no experience with making horn bows.
Regular horn/sinew composites seem to be able to have extremely long draw lengths, for the shortness of the bow, so its probably possible for a hunting weight bow, maybe not for a bow suitable for dealing with plate armour, or a siege artillery weight bow? Just a thought.