1) жёсткость (элемента конструкции, бетонной смеси, каната и др.)
2) крутизна (откоса)
- stiffness in compression
- stiffness in tension
- stiffness in torsion
- stiffness of structure
- bending stiffness
- column stiffness
- cylindrical stiffness of a plate
- excessive stiffness
- fixed-end stiffness
- flexural stiffness
- linear stiffness
- relative stiffness
- simple-beam stiffness of the member
- torsional stiffness
- true stiffness of a member