Any point on one of the interaction curves is identified by a P, M2 and M3 coordinate. P is the axial load, M2 is the moment about the local 2-axis and M3 is the moment about the local 3-axis. The Interaction Surface form displays the P, M2 and M3 coordinates of each of the curves that make up the interaction surface in a tabular format, one curve at a time.
Use the arrow buttons below the table to scroll through the various PM curves. These arrow buttons are reproduced below and labeled 1 through 4 for reference. Arrow button 1 jumps up to the first PM curve (0°). Arrow button 2 takes you up one PM curve. Note that there is an arrow to the left of the table indicating the current line. Arrow button 3 takes you down one PM curve. Arrow button 4 jumps down to the last PM curve. Note that the current curve number and its angle in degrees are reported below the table to the left of the arrows.
See Interaction Surface Form Edit menu for information on copying the data in the table to the Windows clipboard.
See Also:
Interaction Surface Form Charts
Interaction Surface Form Options Area
Interaction Surface Form 3D View Area
Interaction Surface Form Edit menu