· Stress Analysis Notes

· Stress analysis is done using a mathematical representation of a physical system

· composed of:

· A part (model)

· Material properties

· Applicable boundary conditions and loads, referred to as preprocessing

· The solution of that mathematical representation (solving)

· To find a solution, the part is divided into a number of smaller elements

· The solver adds up the individual behaviors of each element to predict behavior of entire physical system

· The study of results of that solution, referred to as post-processing.

· Assumption

· Stress is proportional to strain

· Yeild point is not reached

· Slope of the material stress-strain curve in the elastic region

· (measured as the Modulus of Elasticity) is constant

· Total deformation is assumed to be small

· Temperature is assumed not to

· affect material properties

· How much more fun can it get

· Changing the material

· Changing location and type of load

· Analyzing the part

· Study tooltips text and image

· Stress Analysis Steps

· Open existing part drawing

· Select material for part

· Click Stress Analysis Settings

· Adjust the mesh

· Analysis Type pull-down list

· Select analysis style

· Click appropriate load on stress analysis panel bar

· Select faces, edges, or vertices

· Enter magnitude to apply load

· Click appropirate constraint

· Select faces, edges, or vertices to apply a constraint

· This is not necessary for Modal analysis

· Click Stress Analysis Update to start the analysis

· Make changes to part by either adding features or suppressing problematic ones using Suppress for Stress Analysis

· Use result convergence and resolve to ensure that the results are as accurate as possible

· Result convergence is blocked for multiple-time step support and prestressed modal results

· Finite element analysis on an in place activated part

· Appliations > Assembly

· In the Model browser

· Double-click the part you want to activate

· Select Applications > Stress Analysis

· to activate the stress analysis environment

· In the Material list

· Select material for the activated part

· Apply loads and constraints

· Click Stress Analysis Update to perform analysis