The Application Gallery features COMSOL Multiphysics® tutorial and demo app files pertinent to the electrical, structural, acoustics, fluid, heat, and chemical disciplines. You can use these examples as a starting point for your own simulation work by downloading the tutorial model or demo app file and its accompanying instructions.

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Large Deformation Analysis of a Beam

This example studies the deflection of a cantilever beam undergoing very large deflections. In addition, a linearized buckling analysis of the structure is also performed. The model comes from Section 5.2 of NAFEMS Background to Finite Element Analysis of Geometric Non-linearity Benchmarks.

Vibrating Membrane

The natural frequencies of a prestressed circular membrane are computed and compared with analytical solutions. Two method are used: In the first study the prestress is given explicitly, while in the second study an external load provides the prestress.

Cylinder Roller Contact

Consider an infinitely long steel cylinder resting on a flat aluminum foundation, where both structures are elastic. The cylinder is subjected to a point load along its top. The objective of this study is to find the contact pressure distribution and the length of contact between the foundation and the cylinder. An analytical solution exists, and this model includes a comparison against the ...

Mixed-Mode Debonding of a Laminated Composite

Interfacial failure by delamination or debonding can be simulated with a Cohesive Zone Model (CZM). This example shows the implementation of a CZM with a bilinear traction-separation law. It is used to predict the mixed-mode softening onset and delamination propagation in a composite material.

Various Analyses of an Elbow Bracket

The component depicted in this model is part of a support mechanism and is subjected to various mechanical loads. This tutorial model takes you through the steps to carry out a detailed analysis of the part using the Structural Mechanics Module. In the various parts of the example you are introduced to using the available basic analysis types, together with numerous postprocessing ...

Vibroacoustic Loudspeaker Simulation: Multiphysics with BEM-FEM

This model shows a full vibroacoustic analysis of a loudspeaker including driver, cabinet, and stand. It lets you apply a nominal driving voltage and extract the resulting sound pressure level in the cabinet and in the outside room, as well as the deformation of the cabinet and driver, for a given frequency. The loudspeaker stand is placed on a hard floor some distance from a wall, which is ...

Nonlinear Magnetostrictive Transducer

Magnetostrictive transduction is used in sonars, acoustic devices, active vibration, and position control and fuel injection systems. The transducer has a steel housing enclosing a drive coil. A magnetostrictive material is placed in the core, which works as an actuator when a magnetic field is produced by passing a current through the drive coil. Magnetostrictive material exhibits free ...

Slope Stability with Pore Water Pressure in a Dam Embankment

A slope stability analysis is performed and the Factor of safety of the dam embankment is calculated by using the Shear Strength Reduction Technique. The pore water pressure is described with Darcy’s law and the Mohr-Coulomb constitutive model is used to describe the soil behavior. At first, a 2D model (plane strain) is investigated followed by a extruded 3D model. The 2D model and the 3D model ...

Thermal Initial Stresses in a Layered Plate

The thermal stress in a layered plate is studied in this example. A plate consisting of two layers, a coating and a substrate layer is stress and strain free at 800 degrees C. The temperature of the plate is reduced to 150 degrees C and thermal stresses are induced. A third layer, the carrier layer, is added and the thermal stresses in the coating and a substrate layer are added as an initial ...

Thermal Expansion in a MEMS Device

This model analyzes the thermal expansion in a MEMS device, such as a microgyroscope, where thermal expansion should be minimized. The device is made from the copper-beryllium alloy UNS C17500 and uses temperature-dependent material properties from the Material Library. The purpose of this model is to exemplify the use of the Material Library in COMSOL Multiphysics. This library contains more ...