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Structural Mechanics Module
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Blood Vessel
This model refers to a portion of the vascular system of a young child - the upper part of the aorta artery. The blood vessels are embedded in a biological tissue (the cardiac muscle) and, during the flow of blood, pressure is applied to the internal surfaces producing deformation of the vessel wall...
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Structural and Fatigue Analysis of a Car Wheel Rim
This example shows two structural analyses of a car wheel rim.
Firstly, the parametric solver is used to simulate a varying load along the boundary of the rim. The model solves for both the anti-symmetric and symmetric load cases. The two solutions are then combined in MATLAB in order to retrieve...
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Acoustic-Structure Interaction
Liquid or gas acoustics coupled to structural objects such as membranes, plates or solids are important applications in many engineering fields. Some application examples include:
loudspeakers, acoustic sensors, nondestructive impedance testing, medical ultrasound diagnostics of the human body....
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Diesel Engine Piston
In this model, a diesel engine piston is studied at steady-state conditions, that is, at a continuous engine speed and load.
The combustion process at steady-state produces cyclic pressure loads and a high constant temperatures. These load conditions could yield a piston failure due to fatigue crac...
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3D Fluid-Structure Interaction Simulation of an Obstacle in a Fluid Channel
In this model, fluid is flowing through a channel containing a flexible obstacle. Due to the viscous and pressure forces asserted by the fluid, the obstacle bends.
With the obstacle undergoing a large deformation, the fluid flow domain also changes considerably. COMSOL Multiphysics takes these c...
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Biot Poroelasticity
The Biot Poroelasticity example two-way couples Darcy's law and the plane strain application modes to assess deformation of porous media that results from fluid withdrawals.
The model builds on top of the Terzaghi Compaction example. Results from Terzaghi compaction and Biot poroelasticity analy...
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Thermo-Mechanical Analysis of a Surface Mounted Resistor
The drive for miniaturizing electronic devices has resulted in today’s extensive use of surface-mount electronic components.
An important aspect in electronics design and the choice of materials is a product’s durability and lifetime.
For surface-mounted resistors and other components prod...
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Contact Analysis of a Snap Hook Fastener
Snap hook fasteners, where a hook is inserted into a groove, are common in the automotive industry, for example in the control panel of a car.
To obtain the magnitude of the forces necessary to insert and remove the hook, this model solves a nonlinear structural mechanics problem involving large...
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Sheet Metal Forming by a Spherical Punch
A common sheet metal forming process is where a punch is used to deform a plate clamped between two jaws.
This axi-symmetric contact model simulates the deformation of an elasto-plastic circular plate being bent by a spherical punch.
The force necessary to deform the plate and the shape of th...
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Thermal Drift in a Microwave Filter Cavity
Microwave filters are used to eliminate unwanted frequency components in the output from microwave transmitters. They are typically inserted between a power amplifier and an antenna. The amplifiers are nonlinear and produce harmonics that must be eliminated with filters that have a rather narrow pa...
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