20 ksi 40 ksi 60 ksi The differential element above represents the state of plane stress at a point in a steel beam. Which of the following best represents the orientation of the maximum in-plane shear stress orientation (relative to the given differential element) at the point? O-22.5° O+25.0° O+77.5° O+56.6°

20 ksi 40 ksi 60 ksi The differential element above represents the state of plane stress at a point in a steel beam. Which of the following best represents the orientation of the maximum in-plane shear stress orientation (relative to the given differential element) at the point? O-22.5° O+25.0° O+77.5° O+56.6°

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter7: Analysis Of Stress And Strain

Section: Chapter Questions

Problem 7.2.4P: .4 The stresses on an clement arc known to be sx= 120 MPa, sy= 100 MPa, and txy= 75 MPa. Find the...

See similar textbooks

Similar questions

A tie-down on the deck of a sailboat consists of a bent bar boiled at both ends, as shown in the figure. The diameter dBof the bar is 1/4 in., the diameter D Wof the washers is 7/8 in., and the thickness is of the fiberglass deck is 3/8 in. If the allowable shear stress in the fiberglass is 300 psi, and the allowable bearing pressure between the washer and the fiberglass is 550 psi, what is the allowable load P allowon the tie-down?
A vertical pole consisting of a circular tube of outer diameter 5 in. and inner diameter 4.5 in. is loaded by a linearly varying distributed force with maximum intensity of q0, Find the maximum shear stress in the pole.
The shear stresses t in a rectangular beam arc given by Eq. (5-43): in which Fis the shear force, / is the moment of inertia of the cross-sectional area, /lis the height of the beam, and i] is the distance from the neutral axis to the point where the shear stress is being determined (Fig. 5-32). By integrating over the cross-sectional area, show that the resultant of the shear stresses is equal to the shear force V.
A retaining wall (Fig. a) is constructed using steel W-shape columns and concrete panel infill (Fig, b). Each column is subjected to lateral soil pressure with peak intensity q0(Figs, b and c). The tensile and compressive strength of the beam is 600 MPa. Select the most economical W 360 section from Table F-l(b) based on safety factor of 3.0.
A flying but tress transmit s a load P = 25 kN, acting at an angle of 60º to the horizontal, to the top of a vertical buttress AB (see figure). The vertical buttress has height h = 5.0 m and rectangular cross section of thickness t = 1.5 m and width b = 1.0 m (perpendicular to the plane of the figure). The stone used in the construction weighs y = 26 kN/m3. What is the required weight W of the pedestal and statue above the vertical buttress (that is, above section A) to avoid any tensile stresses in the vertical buttress?
.4 The stresses on an clement arc known to be sx= 120 MPa, sy= 100 MPa, and txy= 75 MPa. Find the stresses on an inclined section through the element at an angle ? = 45°.
A steel bar has a square cross section of width b = 2.0 in. (sec figure). The bar has pinned supports at the ends and is 3.0 ft long. The axial forces acting at the end of the bar have a resultant P = 20 kips located at distance e = 0,75 in, from the center of the cross section. Also, the modulus of elasticity of the steel is 29,000 ksi. Determine the maximum compressive stress max, in the bar. If the allowable stress in the steel is 18,000 psi, what is the maximum permissible length Lmaxof the bar?
In determining the bending stress, what conclusion can be drawn if the neutral axis is an axis of symmetric of the cross-section? a. The maximum tensile and compression bending stresses are equal in magnitude and occur at the section of the largest bending moment. b. The maximum tensile and compression bending stresses are equal in magnitude and occur at the section of the smallest bending moment. c. None of the choices d. The maximum tensile and compressive bending stresses may occur in different sections.
Determine the largest intensity of the distributed load ww and its length xx on the beam so that the beam remains in the horizontal position when it is loaded. Express your answers, separated by a comma, to three significant figures. Given: The rigid beam is supported at its ends by two A-36 steel tie rods. (Figure 1) The rods have diameters dAB=0.51 in.dAB=0.51 in. and dCD=0.29 in.dCD=0.29 in. The allowable stress for the steel is σallow=16.6 ksiσallow=16.6 ksi.
If the beam has a rectangular cross-section, then the shear-stress distribution will be parabolic. True or False?
How is the maximum shear stress determined with the torsion formula?
What is the maximum normal stress, MPa, due to bending on section C? For S200x27.4, S = 235µm^3. Answer in whole numbers, no units. (Example: 123MPa --> 123)