The Modulus of Rupture (MOR) and Modulus of Elasticity (MOE) are standardized measures of wood mechanical properties determined through static bending tests. MOR quantifies the maximum bending stress wood can withstand before failure; MOE measures stiffness (resistance to bending). These are fundamental properties used for wood grading, structural design, and assessment of wood quality and species suitability for applications requiring strength or stiffness.
ASTM D143-19. (2019). Standard test methods for small clear specimens of timber. ASTM International. link ↗
Green, D. W., Winandy, J. E., & Kretschmann, D. E. (2010). Mechanical properties of wood. General Technical Report FPL–GTR–190. Forest Products Laboratory. link ↗