Lior Medina
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Previous Organizations / Institutes
The organizations / institutes from the scholar's other articles in the past ten years
Research Subjects
Research Interests
Lior Medina has a total of 23 co-authors. Here are the top co-authors by number of shared publications:
- Slava Krylov
Tel Aviv University
24 shared publications Rivka Gilat
22 shared publicationsAshwin A. Seshia
3 shared publications- B. Robert Ilic
Center for Nanoscale Science and Technology, National Institute of Standards and Technology, Gaithersburg, MD 20899, USA
3 shared publications Arava R. Korakh
1 shared publicationB. Ilic
School of Engineering and Applied Physics and Cornell Nanoscale Facility, Cornell University, Ithaca, NY, USA
1 shared publication
Latest Publications
- Open Access
- 15 July 2026
- Published by Springer Nature in Nonlinear Dynamics
- Vol. 114 (14)
A unified necessary condition for dynamic bow snap-through with prestress tuning in electrostatically actuated bistable microbeams
A curved bistable microbeam, subjected to electrostatic loading from an electrode facing its concave side, may exhibit bow snap-through ( BST ) at nearly half the voltage ( $$\approx 54\%$$ ) when compared to actuation from the convex side. Previously, it was shown that introducing prestress can enable BST where it is otherwise unattainable. The current work extends the BST condition to include dynamic actuation, thus establishing dynamic bow snap-through ( DBST ) as a viable and sustainable form of actuation, since it can reduce actuation by $$\approx $$ 10 to 16%. To enable analytical derivation while retaining generality across various loading scenarios, the analysis employs an undamped single-degree-of-freedom reduced-order model obtained via Galerkin’s decomposition. The resulting formulation yields a necessary condition for DBST , expressed in terms of beam geometry, prestress, and initial conditions, forming a unified condition. Subsequent analysis shows that suddenly applied actuations, combined with prestress, can enable BST over a wider range of parameters, whereas excessive kinetic energy and/or prestress can suppress DBST . The proposed condition provides practical design guideline for energy-efficient, low-voltage and non-volatile bistable devices.- 15 July 2026
- Published by Springer Nature in Nonlinear Dynamics
- Vol. 114 (14)
Open AccessA unified necessary condition for dynamic bow snap-through with prestress tuning in electrostatically actuated bistable microbeams
A curved bistable microbeam, subjected to electrostatic loading from an electrode facing its concave side, may exhibit bow snap-through ( BST ) at nearly half the voltage ( $$\approx 54\%$$ ) when compared to actuation from the convex side. Previously, it was shown that introducing prestress can enable BST where it is otherwise unattainable. The current work extends the BST condition to include dynamic actuation, thus establishing dynamic bow snap-through ( DBST ) as a viable and sustainable form of actuation, since it can reduce actuation by $$\approx $$ 10 to 16%. To enable analytical derivation while retaining generality across various loading scenarios, the analysis employs an undamped single-degree-of-freedom reduced-order model obtained via Galerkin’s decomposition. The resulting formulation yields a necessary condition for DBST , expressed in terms of beam geometry, prestress, and initial conditions, forming a unified condition. Subsequent analysis shows that suddenly applied actuations, combined with prestress, can enable BST over a wider range of parameters, whereas excessive kinetic energy and/or prestress can suppress DBST . The proposed condition provides practical design guideline for energy-efficient, low-voltage and non-volatile bistable devices. - Open Access
- 21 September 2025
- Published by Elsevier in International Journal of Engineering Science
- Vol. 217
Global limit points behaviour and multistable thresholds in electrostatically actuated double micro-beam structures
- 21 September 2025
- Published by Elsevier in International Journal of Engineering Science
- Vol. 217
Open AccessGlobal limit points behaviour and multistable thresholds in electrostatically actuated double micro-beam structures
- Open Access
- 29 July 2025
- Published by Elsevier in European Journal of Mechanics - A/Solids
- Vol. 115
Overcoming limitations of electrostatic bow snap-through in bistable microbeams via prestress tuning
- 29 July 2025
- Published by Elsevier in European Journal of Mechanics - A/Solids
- Vol. 115
Open AccessOvercoming limitations of electrostatic bow snap-through in bistable microbeams via prestress tuning
- 29 June 2024
- Published by Elsevier in Thin-Walled Structures
- Vol. 203
Bistability-latching criteria in pre-pressurised and electrostatically actuated curved microplates
- 29 June 2024
- Published by Elsevier in Thin-Walled Structures
- Vol. 203
Bistability-latching criteria in pre-pressurised and electrostatically actuated curved microplates
- 22 September 2023
- Published by Elsevier in International Journal of Mechanical Sciences
- Vol. 263
Unified dynamic bistability criteria in electrostatically actuated curved prestressed microbeams
- 22 September 2023
- Published by Elsevier in International Journal of Mechanical Sciences
- Vol. 263
Unified dynamic bistability criteria in electrostatically actuated curved prestressed microbeams
- 2 December 2022
- Published by Wiley in Journal of Applied Mechanics
- Vol. 90 (3) , 1-12
Effect of Membrane Load on the Stability of an Electrostatically Actuated Initially Curved Circular Micro Plate
The effects of membrane load on the axisymmetric bistable behavior of circular curved micro plates are studied via an axisymmetric reduced order (RO) model, incorporating radial prestress. The model is based on Kirchhoff’s hypothesis and Föppl-von-Kármán’s kinematics. The model is first validated for a “mechanical” (displacement-independent) load, against an RO model with 20 degrees-of-freedom (DOF), a finite differences (FD) solution, and finally, a finite elements (FE) model, serving as the reference. All solutions implement the “Riks” continuation method to track unstable branches, which can swerve in a complex form due to the presence of higher buckling modes. A convergence study is carried out for the snap-through location and load, as well as for the critical elevation and prestress required for bistability. Based on the validated results of the mechanical analysis, the reliability of the model for predicting the effect of prestress on the plate behavior under nonlinear (displacement-dependent) electrostatic load is then investigated while using FD as the reference. The study furnishes an expended RO model for curved plates, which includes the effect of prestress. The resulting model can further be used to estimate the value of residual membrane load present in electrostatically actuated curved plates, as well as predict the threshold for bistability.
- 2 December 2022
- Published by Wiley in Journal of Applied Mechanics
- Vol. 90 (3) , 1-12
Effect of Membrane Load on the Stability of an Electrostatically Actuated Initially Curved Circular Micro Plate
The effects of membrane load on the axisymmetric bistable behavior of circular curved micro plates are studied via an axisymmetric reduced order (RO) model, incorporating radial prestress. The model is based on Kirchhoff’s hypothesis and Föppl-von-Kármán’s kinematics. The model is first validated for a “mechanical” (displacement-independent) load, against an RO model with 20 degrees-of-freedom (DOF), a finite differences (FD) solution, and finally, a finite elements (FE) model, serving as the reference. All solutions implement the “Riks” continuation method to track unstable branches, which can swerve in a complex form due to the presence of higher buckling modes. A convergence study is carried out for the snap-through location and load, as well as for the critical elevation and prestress required for bistability. Based on the validated results of the mechanical analysis, the reliability of the model for predicting the effect of prestress on the plate behavior under nonlinear (displacement-dependent) electrostatic load is then investigated while using FD as the reference. The study furnishes an expended RO model for curved plates, which includes the effect of prestress. The resulting model can further be used to estimate the value of residual membrane load present in electrostatically actuated curved plates, as well as predict the threshold for bistability.