  Wood is a fibrous orthotropic material additionally characterized with
sign-sensitivity. Thus, determining the universal conditions of its strength
constitutes a complex task. In their work, the authors present the anisotropic
generalization of the Huber criterion which is closer to Norris's proposal, as
opposed to Hill (and Hofmann) and Mises proposal. The obtained criterion
incorporates conditions which are additionally imposed on a special case of
Tsai-Wu criterion for composite materials.
