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Getting Started with Modeling Structural Mechanics

Getting Started with Modeling Structural Mechanics


Structural Mechanics is a field of applied mechanics in which you compute the deformations, stresses and strains in solid materials when subjected to forces and loads. This course provides an introduction to modeling structural mechanics using the COMSOL Multiphysics® software and the add-on Structural Mechanics Module. Through discussions accompanied with detailed step-by-step modeling guidance, you will learn not only how to conduct various types of structural analyses in the software, but also the concept behind each type of analysis. Each course part begins with a discussion covering fundamentals and providing an introduction to either the model implementation or the type of analysis being conducted. Model files are included in each part of the course, so you can access the completed model built during the step-by-step modeling demonstration segments.

The bracket model displaying a metallic appearance with parts of the structure showing a color range from white to red for the Von Mises stress.

The bracket tutorial model is used throughout the course, including for frequency domain and modal studies as shown above.

An overview of what is covered throughout the course is outlined below:

Part 1: Basics of Modeling Structural Mechanics

  • Fundamentals of structural mechanics modeling
  • Overview of stress, strain, governing equations, and boundary conditions
  • Setting up, building, and computing a static, structural model

Part 2: Physics Interfaces for Modeling Structures

  • Overview of physics interfaces for modeling different types of structures
  • Use cases and examples for when each interface should be used
  • Setting up, building, and computing a model using solids and shells for the structure

Part 3: Basics of Time-Dependent Analysis in Structural Mechanics

  • Overview of time-dependent analysis and the preset studies available for it in the software
  • Options for including damping effects in a model
  • Setting up, building, and computing a time-dependent model

Part 4: Basics of Eigenfrequency Analysis in Structural Mechanics

  • Overview of eigenfrequency analysis and the preset studies available for it in the software
  • Including damping effects in a model
  • Setting up, building, and computing an eigenfrequency analysis of a structure

Part 5: Basics of Frequency Domain Analysis in Structural Mechanics

  • Overview of frequency domain analysis and the preset studies available for it in the software
  • Performing prestressed analysis and utilizing mode superposition
  • Setting up, building, and computing a frequency domain analysis of a structure

Upon completing the course, you will have a complete understanding of the modeling workflow in the software and thorough understanding of the fundamentals of modeling structural mechanics in COMSOL Multiphysics. You will be familiar with the structural mechanics interfaces, preset study types, boundary conditions, and various features that are relevant for modeling structural applications. You will also have a better understanding of the various study types in the software and how to define the physics to effectively and efficiently build and compute your models.


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