PSI - Issue 74

Marta Kianicová et al. / Procedia Structural Integrity 74 (2025) 38–43 Marta Kianicová / Structural Integrity Procedia 00 (2025) 000 – 000

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Fig. 4 The dependence of the parameter S a on fatigue life of compact and porous filaments

Fig. 5 The dependence of the parameter S v on fatigue life of compact and porous filaments

4. Conclusion Eight filaments of porous and compact scaffolds were studied with the confocal laser microscope to obtain the roughness parameters S dr , S a and S v , which were found to be higher for porous filaments. This indicates their higher resistance to fatigue compared to compact ones, caused by crack - tip shielding effects and fatigue crack path extension. Acknowledgements This work was supported by the Ministry of Education, Research, Development and Youth of the Slovak Republic under the project VEGA 1/0080/24, the Czech Science Foundation under the project number 23-07879S and the Brno University of Technology under Specific Research Project FSI-S-23-8324.