14 Questions 24 Answers 0 Followers
Questions related from Mostafa Shabani
How the integral in equation 1 is calculated into equation 3 depicted in the attached picture using equation 2?
16 January 2023 9,830 2 View
Which simulation software is better to simulate optical ring resonators? COMSOL, Lumerical, Rsoft ? or OptiFDTD? considering that ring resonators simulation is very dependent to RAM memory and...
27 October 2022 457 1 View
How is possible to calculate Ruess Young's modulus for a composite with three layers? As I know the Ruess young modulus for two layers is calculated from the equation below:
04 June 2022 6,259 1 View
What is the relationship between the polar moment of inertia and the torsional constant?
15 February 2022 3,935 1 View
How can I get the equivalent(effective) Young modulus and Poisson ratio of a multilayer structure? A structure like the below picture. the structure is consists of Si, Al2O3, and Al metal thin...
30 January 2022 3,375 3 View
In the Comsol reference manual moving mesh is suggested for solving RF MEMS switches. But the problem is more consistent with deforming geometry because usually the space between membrane and...
26 January 2022 8,350 5 View
how I can find the effective mechanical properties of a multilayer structure, specifically the elasticity of a multilayer structure? I'm simulating a multilayer membrane RF switch. the membrane...
25 January 2022 6,612 2 View
Are optical properties of a-silicon and poly-silicon different? especially their refractive indexes
19 January 2022 7,953 10 View
how can you derive the lumped element circuit model for resonators used in designing metasurfaces? numerically or theoretically?
28 December 2021 9,833 2 View
What are the in-plane and out-of-plane permittivity of a dielectric? for example, I have read that the in-plane permittivity of the graphene is equal to 1+j*sigma/(eps0*omega*tg) (sigma:...
10 September 2021 4,504 5 View
Is it correct to Use deforming geometry instead of deforming mesh for simulation of an RF MEMS switch for the dielectric(air) under the switch bridge? the simulation is done using COMSOL multiphysics.
25 July 2021 9,116 0 View
how to calculate the capacitance of an RF MEMS switch when it is in the down-state? in fact after the PULL-IN voltage the FEM model hasn't solution anymore. how to solve this problem?
27 June 2021 6,828 2 View
In Comsol Multiphysics I don't know where I can find an example for this practice, I want to know which variable must be used in the case of domain, boundary, and point. in detail. which I...
11 June 2021 9,963 3 View
Is there any simulation tool or any theoretical relationship related to this issue? Is there any specific Comsol module for this?
05 June 2021 3,992 1 View
