4. A high strength steel drill rod used for boring a hole in the earth has a diameter of 50 mm. The allowable shear stress in the steel is 120 MPa and the shear modulus is G = 80 GPa. Determine the required length of the rod so that one end of the rod can be twisted 4' with respect to the other end without exceeding the allowable stress. Determine the torsional stiffness in N.m. Determine the allowable shear strain of the rod.

4. A high strength steel drill rod used for boring a hole in the earth has a diameter of 50 mm. The allowable shear stress in the steel is 120 MPa and the shear modulus is G = 80 GPa. Determine the required length of the rod so that one end of the rod can be twisted 4' with respect to the other end without exceeding the allowable stress. Determine the torsional stiffness in N.m. Determine the allowable shear strain of the rod.

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

ProbleT = - An aluminum bar has diameter d = 40 mm, shear modulus of elasticity G = 27 GPa, and torque T = 300 N.m. (a) Determine the maximum shear, tensile, and compressive stresses in the bar, and show these stresses on sketches of properly oriented stress elements. (b) Determine the corresponding maximum strains (shear, tensile, and compressive) in the bar and show these strains on sketches of the deformed elements. |d=40 mm T= 300 N-m
A small aluminum alloy [E = 65 GPa] tee shape is used as a simply supported beam as shown. For this beam, a = 125 mm. The cross-sectional dimensions of the tee shape are b = 15 mm, d = 23 mm, and t = 9 mm. After loads are applied to the beam at B, C, and D, a compressive normal strain of 460 με is measured from a strain gage located at c = 9 mm below the topmost edge of the tee stem at section 1-1. What is the applied load P?
A cylindrical specimen of 1018 steel having a diameter of 6.35 mm and a gauge length of38.1 mm is pulled in tension. Use the load-elongation characteristics tabulated below. Determine the yield strength (σy) at a strain offset of 0.002.
i need the answer quickly
A small aluminum alloy [E = 80 GPa] tee shape is used as a simply supported beam as shown. For this beam, a = 165 mm. The cross- sectional dimensions of the tee shape are b = 19 mm, d = 29 mm, and t = 7 mm. After loads are applied to the beam at B, C, and D, a compressive normal strain of 430 µɛ is measured from a strain gage located at c = 10 mm below the topmost edge of the tee stem at section 1-1. What is the applied load P? P ЗР Strain gage d D E H Answer: P = i
At a point on the surface of a machine component the stresses acting on the e face of a stress element are or = 55 MPa and Txy = 30 MPa (see figure). T- 30 MPa a, = 55 MPa What is the allowable range of values for the stress oy if the maximum shear stress is limited to TO = 34 MPa? Round to one decimal place. (a) Lower limit is MPa (b) Upper limit is MPa
Please explain with all detail steps
Determine the normal stress and change in length of the aluminum rod if the temperature was raised by 125°C. The 0.5-mm gap exists at 20°C. q = 5 t = 0
Determine (d) variable stress and (e) design factor
1.4
13