This study investigated the effectiveness of auxetic structures in dish sponges to improve water evacuation and reduce residual moisture, addressing hygiene concerns and frequent disposal. Using Ansys Mechanical Finite Element Analysis (FEA) simulations were performed on both traditional and auxetic sponge designs to compare their mechanical behaviour under compression.

The results showed that the auxetic sponge exhibited superior water expulsion capabilities, with a 3.33 times greater volume reduction and significantly higher deformation under the same applied force compared to the traditional sponge. This suggests that auxetic sponges could extend lifespan, reduce bacterial growth, and mitigate environmental impact by decreasing replacement frequency.

Despite these advantages, challenges related to manufacturing complexity and cost may limit their feasibility for domestic use. However, specialized applications, such as oil spill clean up, present promising opportunities for further development.

The study highlights the mechanical benefits of auxetic sponges and emphasizes the need for experimental validation and advanced modelling to fully assess their real-world potential. Future research could explore different types of auxetic structures, incorporate more detailed porous models, and use computational fluid dynamics (CFD) to accurately test water expulsion

full paper available : https://auxetic-report.tiiny.site/