PSI - Issue 37

Jesús Toribio et al. / Procedia Structural Integrity 37 (2022) 977–984 Jesús Toribio / Procedia Structural Integrity 00 (2021) 000 – 000

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Fig. 11. Galileo Galilei, scheme of a test on a cantilever beam and book cover of Dimostrazioni Matematiche .

Acknowledgements This paper was presented as Keynote Plenary Lecture in the virtual 4th International Conference on Structural Integrity (ICSI 2021) held in Funchal, Madeira, Portugal during August – September 2021. The author warmly acknowledges the warm invitation by the two chairmen of the conference, Pedro Moreira and Paulo Tavares, as well as the generous and kind introduction when the talk was delivered. In addition, the author gratefully acknowledges fruitful discussions about the concept of structural integrity with Professors David Taplin, Alberto Carpinteri and Shouwen Yu during the ICF ExCo held on May 19, 2011 in Anaheim (USA), as well as with Professors Krishnaswamy Ravi-Chandar and Leslie Banks-Sills during the 13 th International Conference on Fracture (ICF13) held in Beijing, June 16-21 2013 (https://www.icf13.org/). The article was written during the full summer vacation of the University of Salamanca (Spain) in August 2021. The author wishes to warmly dedicate it to his wife Lourdes Menárguez, his daughter Ana Lym Toribio and his son Juan Sun Toribio for the love, patience and support they have always provided and for very joyful moments between the rigorous and exhausting scientific work. In Memoriam The paper is dedicated to the memory of Professors Keith Miller and Dominique Francois, masters and friends, whose enthusiastic and forward-looking action allowed the development of the European Structural Integrity Society (ESIS), formerly the European Group on Fracture (EGF), cf. Fig. 12. The paper is also dedicated to the memory of Professors Paulo Lazzarin and Robert Goldstein, masters and friends, whose scientific work contributed to the development of fracture mechanics and structural integrity in Italy and Russia respectively, cf. Fig. 12 .

Fig. 12. Keith Miller (UK), Dominique Francois (France), Paulo Lazzarin (Italy) and Robert Goldstein (Russia).