From the laboratory notebook of the PRELUDIUM 19 project

What is the fracture toughness of wood? Many engineers have dealt with this topic in terms of applications in construction. But what if we ask ourselves this question, bearing in mind the species of wood popular in the cultural heritage, i.e. lime wood?

This problem has not been fully investigated and our aim is to fill the resulting gap knowledge.

For this purpose, we will conduct experiments according to the “wedge splitting method” developed for wood by Stanzl-Tschegg et al. (1995). Presently, our samples are conditioned in the appropriate relative humidity, maintained by a saturated solution of salt selected for this purpose.

The research is a part of the Preludium 19 project, project number 2020/37/N/HS2/01727/2, financed by the National Science Center, Poland.

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