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Various Analyses of an Elbow BracketSOLVED WITH COMSOL MULTIPHYSICS 3.5a

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elbow_bracket_static.book Page 1 Wednesday, June 17, 2009 2:53 PM

elbow_bracket_static.book Page 1 Wednesday, June 17, 2009 2:53 PM

V a r i o u s Ana l y s e s o f an E l b ow B r a c k e t

Introduction

The component depicted in Figure 1 is part of a support mechanism and is subjected to both mechanical loads and thermal loads. This tutorial model takes you through the steps to carry out a detailed analysis of the part using the Structural Mechanics Module.

Figure 1: Geometry of the elbow bracket.

In the various parts of the model you are introduced to using the available seven basic analysis types, together with numerous postprocessing possibilities. These analysis types are:

• Static analysis

• Eigenfrequency analysis

• Damped eigenfrequency analysis

• Transient analysis

• Frequency response analysis

• Parametric analysis

• Quasi-static transient analysis

Modeling in COMSOL Multiphysics

This tutorial model consists of seven submodels, corresponding to the analysis types mentioned in the section “Introduction”. You can set up the models following the procedure outlined in the chapter “Basic Modeling Procedures” on page 12.

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The initial steps of geometry modeling, mesh generation, and material settings are shared between some of the submodels, and are only detailed in the step-by-step description of the static analysis model, starting on page 18. A model file containing these initial steps is included in the Model Library, and you can use it as a starting point when modeling.

Static Analysis

A static analysis has no explicit or implicit time dependencies. This situation corresponds to the steady state of a transient analysis with constant (in time) boundary conditions and material properties.

The purpose of such analysis can be to find the maximum stress level and compare it with the material’s yield strength, as well as to check that the deformation of the component is within the limits of the design criteria.

The Model Library note immediately below appears in the discussion of every model. The path indicates the location of the model file on the Model Library page in the Model

Navigator.

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