Development and fabrication of an auxetic composite with the shape memory effect for the regeneration of damaged partsTomažinčič, Dejan (Avtor) Kajbič, Jure (Avtor) Klemenc, Jernej (Avtor) ordered porosityauxetic propertiesnegative Poisson's ratiocellular structureNiTi SMAshape memory effectThe purpose of the article is to present a design of an active composite cellular structure, which consists of two different materials. A flexible polymer matrix is moulded around a pre-braided wire reinforcement, which is made of a high-strength shape memory material NiTi SMA. The composite is formed in a special mould, which enables manufacturing of cellular auxetic specimens. Since the reinforcements are made from the shape memory alloy, this enables temperature activation of the interwoven reinforcement wires to restore the deformed shape. In addition, such a structure can be deformed according to a precisely defined Poisson's ratio. To design this structure, a special finite-element approach was also developed, which enables simulating the response of a super-elastic material with a shape memory effect. The effectiveness of this finite-element approach was verified by experimental testing of the sample specimen that actually deforms according to the desired negative Poisson's ratio. The experimental results confirmed the regeneration ability of the newly developed cellular composite structure.20262025-10-22 14:30:40Članek v reviji175237UDK: 620.168:539.217ISSN pri članku: 1359-8368DOI: 10.1016/j.compositesb.2025.113034COBISS_ID: 254324483sl