Glossary (глосарій)

the displacement of an elastic body under the point of application of any force, in the direction of that force, is given by the partial derivative of the total internal strain energy with respect to that force

is the point at which the area might be considered to be concentrated аnd still leaves unchanged the first moment of the area about any axis

is a long slender bar subject to axial compression

is the case of stresses state, when in an arbitrary cross-section internal force factors are given to the normal force and to one or two bending moments are in the perpendicular planes

is case of stresses state at which in arbitrary cross-section the internal forces are leaded to the twisting and bending moments

is case of stresses state, when in each cross-section internal force factors are given two bending moments in the perpendicular planes

is the central part of the cross-section, in which or at its limit, the application of compressive force, causes only compressive stresses at all points of the cross-section