20.500.12556/DKUM-92922 Quasi-static and impact behaviour of polymer-metal interpenetrating phase TPMS composites Interpenetrating phase composites (IPC) are materials with two or more mutually continuous, interconnected phases. This structure allows each phase to retain its properties, while together they exhibit enhanced synergistic properties. In this work, polymer-metal IPCs with Triply Periodical Minimal Surface (TPMS) structures were fabricated and tested for their mechanical properties at different impact velocities (ranging from 0.1 mm/s to 250 m/s). Samples. The samples comprise a stainless steel reinforcement phase and two polymeric matrices (silicone and epoxy). Computed tomography was used to evaluate the internal structure and the fabrication quality. The results showed that the samples were thoroughly infiltrated with polymeric filler, achieving a high degree of homogeneity in the composite. The compression tests of silicone-filled IPCs showed an increase in stiffness. Still, the Specific Energy Absorption (SEA) was not improved due to the non-optimal stiffness ratio between the polymeric matrix and the metallic reinforcement phase. However, using epoxy as the matrix resulted in the SEA enhancement of 38 %. This is attributed to the interlocking mechanism between the two phases, which improved the macroscopic mechanical properties. The compression tests showed significant strain rate hardening due to the base material’s strain rate sensitivity and the inertia effects. TPMS interpenetrating phase composite polymer filler hybrid structure experimental testing mechanical properties strain rate effect interpenetracijski fazni kompoziti polimerno polnilo hibridna struktura eksperimentalno testiranje mehanske lastnosti učinek hitrostne deformacije true false true Elsevier Angleški jezik Slovenski jezik https://www.sciencedirect.com/science/article/pii/S0263822325003903 Članek v reviji 2025-05-26 15:11:24 2025-05-26 15:11:25 2025-05-27 03:08:58 0000-00-00 00:00:00 2025 0 0 str. 1-12 Vol. 366, [article no.] 119225 Aug. 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 2024-10-01 2025-04-25 2025-04-29 531/533:539.3 237216515 10.1016/j.compstruct.2025.119225 1879-1085 1-s2.0-S0263822325003903-main.pdf 1-s2.0-S0263822325003903-main.pdf 1 22129E82D0C6F17C397B51247F2E01B5 8dab9f59d3b93ced6916ff98c2848ff909f0a2628d10aaa0068f8a26771dd562 3ce0113a-3a33-11f0-80b9-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=191282 https://www.sciencedirect.com/science/article/pii/S0263822325003903 0 44d1da23-3a33-11f0-80b9-00155d000105 https://dk.um.si/Dokument.php?lang=slv&id=191283 Fakulteta za strojništvo Medicinska fakulteta 0 0 0