PLASTICITY OF FAMILY CIRCLES ON SUPPORTING LINE
In the method of Moor`s diagram in some cases plasticity conditions are interpreted like enveloping to the family of Moor`s circles for overall stress, but sometimes they are interpreted like supporting line connecting the upper points of the circle. The article tuches the question of the opportunity to interpret enveloping and supporting lines simultaneously. It is shown, that the enveloping exists only for circles, constructed on the supporting line with the angular coefficient less than one and can not exist, when supporting» has the angle coefficient more than one.