Interpret Results Of Stress Analysis; Equivalent Or Von Mises Stress - Autodesk 466B1-05A761-1304 - AutoCAD Inventor Simulation Suite 2010 Getting Started Manual

Interpret Results of Stress Analysis

The output of a mathematical solver is generally a substantial quantity of raw
data. This quantity of raw data would normally be difficult and tedious to
interpret without the data sorting and graphical representation traditionally
referred to as post-processing. Post-processing is used to create graphical
displays that show the distribution of stresses, deformations, and other aspects
of the model. Interpretation of these post-processed results is the key to
identifying:
Areas of potential concern as in weak areas in a model.
Areas of material waste as in areas of the model bearing little or no load.
Valuable information about other model performance characteristics, such
as vibration, that otherwise would not be known until a physical model
is built and tested (prototyped).
The results interpretation phase is where the most critical thinking must take
place. You compare the results (such as the numbers versus color contours,
movements) with what is expected. You determine if the results make sense,
and explain the results based on engineering principles. If the results are other
than expected, evaluate the analysis conditions and determine what is causing
the discrepancy.

Equivalent or Von Mises Stress

Three-dimensional stresses and strains build up in many directions. A common
way to express these multidirectional stresses is to summarize them into an
Equivalent stress, also known as the von-Mises stress. A three-dimensional
solid has six stress components. If material properties are found experimentally
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