A steel wire with the diameter of d=1mm is wound around a winding drum with the diameter of 2m. Knowing that the allowable stress of the steel wire is [σ] =200MPa, E=200GPa, determine the maximum stress and the largest size of diameter of the steel wire.
举一反三
- If you have steel wire ropes leading in the same direction with other ropes, which will take the most of the load? ___ . A: Steel wire rope. B: Manila. C: Nylon. D: Polypropylene rope.
- 73. If you have steel wire ropes leading in the same direction with other ropes, which will take the most of the load?
- There are two shafts in torsion with different materials. Knowing that the two have the same diameter and length and are exerted the same torque.Which one is correct in the following statements about the maximum shearing stress and the angle of twist ___.
- Under a certain long-term load, concrete would creep. In the reinforced concrete axial compressive members: A: Creep increases the compressive stress of concrete. B: The compressive stress of concrete and steel bar keeps unchanged. C: Creep decreases the compressive stress of concrete and increases the compressive stress of steel bar. D: Creep increases the compressive stress of concrete and decreases the compressive stress of steel bar.
- If the carbon content of a type of steel is 0.1%, this steel is a kind of (). A: low-carbon steel B: medium-carbon steel C: high-carbon steel D: HTLA steel E: 2-1-1 F: 章测