3.4.3 Modulus/Slope Coefficient Slope, also called Modulus in some industries, is used in load-distance applications in determining elastic or rate. The L2 Plus Series software offers four methods for determining modulus/slope: • Slope Fit • Maximum Slope • Slope Tangent • Slope Two-Point (Segment Slope, Chord Slope, Secant Slope) Each of these are described in the following sections.
3.4.3.1 Slope Auto Fit Coefficient The Slope Fit coefficient for modulus/slope is a quick method that finds the slope on your load-distance graph using an automatic algorithm. This algorithm evaluates the data points along the curve and looks at a specified number of segments that together form a straight line segment or modulus. When you use the Auto Fit algorithm, you first perform your test to obtain your graph. Next, select the Auto Fit algorithm. The scope handles appear at the x-axis and default to the Start and Finish of the test data. You can reposition the scope handles to a particular location on the graph in order to obtain the modulus for that specific line segment.
Slope Measuring Tools •
Slope Fit & Max Slope
•
Slope Tangent
•
Slope Two-Point
Finds the greatest slope using the Slope Fit algorithm at a scope starting at 7mm and finishing at the anchor coefficient Lmax. Slope is 2.02 N/mm. The green line is the slope line. The blue section on the line represents the data used to find the greatest slope.
L2 Plus Point Slope Fit Measurement Finding the results with a scope starting @ 7.04mm and finishing at Dlmax
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