When a shaft having a circular cross section is subjected to a torque, the cross section remains plane while radial lines rotate. This causes a ( ) within the material that varies ( ) along any ( ) line.
A: shear strain; linearly; radial
B: normal strain; linearly; radial
C: shear strain; nonlinearly; radial
D: shear strain; nonlinearly; longitudinal
A: shear strain; linearly; radial
B: normal strain; linearly; radial
C: shear strain; nonlinearly; radial
D: shear strain; nonlinearly; longitudinal
举一反三
- Due to the pure bending deformation, the longitudinal ( ) strain varies ( ) from ( ) at the neutral axis to a maximum at the outer fibers of the beam. A: normal; linearly; zero B: shear; nonlinearly; zero C: shear; nonlinearly; zero D: shear; nonlinearly; zero
- Normal strain cause a change in of the rectangular element, whereas the shear strain cause a change in its .
- The statement that the average strain of the section conforms to the plane section assumption means that the strain of a section in the cracked section conforms to the plane section assumption.
- The cross section of a straight beam remains plane when the beam deforms due to bending. This causes ( ) on one side of the beam and ( ) on the other side. The neutral axis is subjected to ( ) .? normal stress; shear stress; zero stress|tensile stress; compressive stress; zero stress|compressive stress; tensile stress; maximum normal stress|shear stress; normal stress; zero stress
- If the normal stress on the cross section of the axial tensile rod is σ, then the normal stress and shear stress on the 45° degrees section are .