20.500.12556/RUL-182542 Wrinkling of thin plates and shells on shrinking substrates A new finite element formulation and a set of novel desktop experiments for studying wrinkling of thin plates and shells on shrinking substrates is presented. In developing the computational model, we build on our previous work and further develop the finite element formulation by implementing a neo-Hookean material model to more accurately capture large displacements and large strains in the substrate. The substrate is discretized with solid 3D hexahedral 8 node finite elements, whose formulation was derived using the theory of incompatible modes. Our computational model is validated through a series of numerical and desktop experiments on plates and shells. Numerically, the strain mismatch is simulated by cooling the substrate, while experimentally it is achieved through the shrinkage of the silicone substrate during solidification, which was enhanced by the addition of a silicone oil. The extent of shrinkage was controlled by the volume ratio of silicone elastomer-to-silicone oil. A good agreement between the calculated wavelengths of the neighboring wrinkles from numerical simulations, experiments and theoretical predictions confirmed the predictive effectiveness of the proposed numerical procedure. wrinkling thin shell finite element 3D solid neo-Hookean material gubanje tanka lupina končni element 3D-izdelek neohookeovski material true false true Angleški jezik Slovenski jezik Članek v reviji 2026-05-15 12:56:59 2026-05-15 12:57:05 2026-05-16 04:59:44 0000-00-00 00:00:00 2025 0 0 14 str. pt. B, art. 113504 Vol. 215 2025 0000-00-00 Zaloznikova Objavljeno NiDoloceno 0000-00-00 0000-00-00 0000-00-00 621 1879-3223 10.1016/j.tws.2025.113504 239014147 1-s2.0-S026382312500597X-main.pdf 1-s2.0-S026382312500597X-main.pdf 1 3E2AE585772E3D79C0EE9DA9681667D3 b5efdd87a274f4d5a7ecdecf452d58513b5e7b9231f77e117ad3529bdae4c722 325564cd-504d-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=233902 https://www.sciencedirect.com/science/article/pii/S026382312500597X 0 80eaa294-504c-11f1-b0ab-0050569b8976 https://repozitorij.uni-lj.si/Dokument.php?lang=slv&id=233901 Fakulteta za gradbeništvo in geodezijo Fakulteta za strojništvo 0 0 0