Dr. Andreja Kutnar, acting department chair of InnoRenew CoE, UP IAM, together with Dr. Mohammad Derikvand, Dr. Michael David Burnard and Donya Bazyar, InnoRenew CoE, UP IAM researchers, Marko Vouk, and Rok Barbič, from Stilles, recently published a new scientific article “Size effect on bending strength and failure modes of finger-jointed timber” in ScienceDirect.

In the article they explored how size and shape of finger-jointed spruce boards influence their bending strength and failure modes. Using results from 1100 industrial samples, the study shows that thinner boards are stronger and thickness affects which types of breakages appear. Findings confirm safety of current strength ratings but also reveal a clear size effect. Research opens new possibilities for improving sustainable use of wood.