MTS Fracture Analyzer - Manual (Page 90)

geometry-specific calculations. Placeholders for the common functions are added to the test, if any are not
already there.
The body of the function is updated (replaced) in the test run to include the calculations that are specific to
the selected test specimen’s geometry. If you change the domain, it updates the geometry-specific variable
and function placeholders in the test and the analysis definitions.
Use Update All when you want to:
• Add a new geometry.
• Add a function to a geometry and want to make it available to a test.
• Synchronize in your test the functions that have different definitions for various geometries.
During post-test analysis, the Update All button enables you to change calculations and examine the results
of “what-if” scenarios.
Button location
The Update All button appears in the Functions context menu in the Multipurpose Elite application. In the
analyzer application, the button appears in the Function Manager window, accessible through the menu item
and the toolbar button.
Geometry-specific functions
Some functions perform specialized calculations that are based on the specific specimen geometry; that is,
the body of the function is not determined until a specimen is selected at the beginning of a test run. This is
because different specimens require different function calculations in order to return the correct result.
For example, if you run a test using the CTOD Fracture domain (such as the ASTM E1290 test), the CrackSize
function is used to calculate the size of the crack that develops during the test. However, if you open the
function manager to examine the function prior to running the test, only the function parameters exist and the
function body will be undefined. When you run the test and select a specimen, the body of the function will
change depending upon which specimen you choose.
All geometry-specific functions belong to the Geometry category. If you want to view which other functions
are geometry-specific, open the Calculation Editor, sort by Category, and scroll to the group of Geometry
functions.
During test definition
During test definition, the application reads the functions that are common throughout the test domain and
creates empty placeholder functions. The body of the function is updated later to include the geometry-specific
definition. Variables that call the function can validate successfully and avoid possible issues resulting from
function complexities. This approach provides flexibility by allowing test development to be independent from
the geometry.
During analysis
You cannot create a test or test run during post-test analysis. You can, however, synchronize the common
functions using the Update All button. The analysis run receives the geometry’s implementation from the
analysis definition and recalculates the value in the test run.
Update All
To update all variables and functions:
90 MTS TestSuite™ Fracture Analyzer User Guide
7.0 Variable Analysis