Unified anisotropic strength criterion rank two for fibrous materials like wood

TL;DR

This paper introduces a unified anisotropic strength criterion for fibrous materials like wood, extending existing models to better account for wood's orthotropic and sign-sensitive properties.

Contribution

It presents a novel anisotropic strength criterion based on the Huber model, incorporating conditions from the Tsai-Wu criterion for improved accuracy in fibrous materials.

Findings

Provides a generalized strength criterion for fibrous materials.

Incorporates sign-sensitivity and orthotropic properties.

Aligns with Tsai-Wu criterion for composites.

Abstract

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.