5.11.2 Break Rate Algorithm The Break Rate algorithm looks at the slope along the load-distance curve to determine the break point. Using a user-defined break rate, the algorithm first finds the maximum load point. After this point, the algorithm looks for the first occurrence where the break rate appears and marks that point as the break point. 5.11.2.1 Break Rate The Break Rate represents the slope used to find the break point along the curve. The Break Rate is the load/distance rate on the curve. A Break Rate of 10.000 will look for the point after the maximum load where the rate of 10N/mm occurs. 5.11.2.2 Leg Length Specifying the Leg Length helps to counter the effects of noise. Because certain materials exhibit a fairly noisy curve, it would be easy to mistakenly identify a break rate at a correct rate, but that is not at a correct break point if only a single break rate point is used. The Leg Length extends the data points that are examined for the break rate change and allows a more precise break location to be determined.
5.11.2.3 Break Rate Algorithm Scope The scope for the Break Rate algorithm is based on two specific points that defined the end points of a data segment. The scope segment is normally after the maximum load value that was measured and prior to where the stress or strain returned to zero.
You may position the scope handles along either the y-axis or x-axis to define the data segment where you are interested in analyzing.
Or, you may implicitly specify your start and end scope points using values or other coefficients that can be used as anchors. Anchored coefficients display in yellow. Break Rate Algorithm Name The Break Rate algorithm name may be changed from its default of Lbrk to Lrate. 5.11.2.4
The result name may be up to 8 characters in length.
Break Rate
Split Graph - Data View Finding Break load using a Rate (N/mm) in load after Lmax
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