elastic center

elastic center

[i′las·tik ′sen·tər] (mechanics) That point of a beam in the plane of the section lying midway between the flexural center and the center of twist in that section.

elastic center

A point within a wing section at which application of a concentrated load will cause the wing to deflect without rotation. This is the point in the wing section at which rotation will occur when the wing is subjected to a twist.