20.500.12556/RUL-186063 Tailored flax-reinforced composites properties and sustainable applications Tailored flax-reinforced composites (TFRC) are being investigated as a sustainable alternative to conventional glass- and carbon-fiber-reinforced composites, having a lower fiber volume than these and the structure of the laminate with two plies (two identical layers of alkali-treated flax yarns) is unidirectional, weakly twisted, oriented at ±45°, and reinforced by stitching; it is also impregnated with bio-resin and has robust reinforcement through controlled lamination. TFRC has shear-dominated behavior under both tensile and compressive loading, due to the off-axis orientation of the fibers, but the damage evolution differs significantly. Under tensile loading, the material exhibits a lower strength (55.2 MPa), whereas under compression loading, the composite achieves a higher apparent strength (99.1 MPa). The paper provides a comprehensive analysis for structural and mechanical characterization using the following: nondestructive evaluation using ultrasound to detect internal discontinuities and assess homogeneity; optical microscopy to evaluate fiber–matrix integration and porosity reduction; and Dynamic Mechanical Analysis to assess thermomechanical transitions and storage modulus stability. Finite element simulations have been used to determine elastic properties and validate the matrix-dominated shear response. The results confirm that the [±45°]4S sequences of TFRC optimize mechanical response and interfacial adhesion, promoting TFRC as an ecological solution for structural systems where progressive energy dissipation is preferred. biocomposites flax fibers flax-reinforced composites sustainability mechanical properties dynamic mechanical analysis biokompoziti lanena vlakna kompoziti trajnost dinamična mehanska analiza true false true Angleški jezik Slovenski jezik Članek v reviji 2026-08-26 11:44:57 2026-08-26 11:45:03 2026-08-27 04:35:57 0000-00-00 00:00:00 2026 0 0 28 str. issue 17, art. 2069 Vol. 18 2026 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 66.02 2073-4360 10.3390/polym18172069 288947971 Bencze_..._Tailored.pdf Bencze_..._Tailored.pdf 1 94798F4BAEBEFE9CA7C3EF3C6CD43641 3bee1c27167515111bccb5e080b1f1cab1490b18bbf6c2888f5ae0095a2f4aec f08ed386-a132-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=245119 https://www.mdpi.com/2073-4360/18/17/2069 1 6799328d-a132-11f1-9b0d-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=245118 Fakulteta za strojništvo 0 0 0