Need help The frame found in the figure is at 6.0 kN/mand P = 19.0 kN. All the bars of the framehave flexural strength El = 5 x 10^4 kN.m^2,and the rod AC has axial hardness EA = 25 x10^4 kNWPC3,0 mAD.k4,0 mThe smallest value for the stiffnesscoefficient k of the spring of the elasticsupport at D, so that the horizontaldisplacement at C to the right does notexceed the value of 2.0 cm, must be:Answer kN/m.

A consistently disseminated load (UDL) is a heap that is appropriated or spread across the entire…

The frame found in the figure is at 6.0 kN/m and P = 19.0 kN. All the bars of the frame have flexural strength El = 5 x 10^4 kN.m^2, and the rod AC has axial hardness EA = 25 x %D 10^4 kN W 3,0 m D. k A 4,0 m The smallest value for the stiffness coefficient k of the spring of the elastic support at D, so that the horizontal displacement at C to the right does not exceed the value of 2.0 cm, must be: Answer kN/m. B

The frame found in the figure is at 6.0 kN/m and P = 19.0 kN. All the bars of the frame have flexural strength El = 5 x 10^4 kN.m^2, and the rod AC has axial hardness EA = 25 x %D 10^4 kN W 3,0 m D. k A 4,0 m The smallest value for the stiffness coefficient k of the spring of the elastic support at D, so that the horizontal displacement at C to the right does not exceed the value of 2.0 cm, must be: Answer kN/m. B

Mechanics of Materials (MindTap Course List)

9th Edition

ISBN:9781337093347

Author:Barry J. Goodno, James M. Gere

Publisher:Barry J. Goodno, James M. Gere

Chapter2: Axially Loaded Members

Section: Chapter Questions

Problem 2.3.20P: Repeat Problem 2.3-18, but assume that the bar is made of aluminum alloy. If P2= 200 kN, what is...

See similar textbooks

Similar questions

-11 A rubber cube R of a side L = 3 in. and cross- sectional area A = 9 in2 is compressed inside a steel cube S by a force F = 5 lb that applies uniformly distributed pressure to the rubber. Assume E 0.3ksi and,, = 0.45. (a) Calculate the lateral pressure between the rubber and steel (disregard friction between the rubber and the steel, and assume that the steel block is rigid when compared to the rubber). (b) Calculate the change in volume of the rubber.
Repeat Problem 2.3-18, but assume that the bar is made of copper alloy. Calculate the displacements SBand Scif P = 50 kips, L = 5 ft = 3/5 in., b1= 2.75 in., b2= 3 in., and E = 16,000 ksi.
Solve the preceding problem for a steel pipe column (E = 210 GPa) with length L = 1.2 m, inner diameter d2= 36 mm, and outer diameter d2=40 mm.
Around brass bar of a diameter d1= 20mm has upset ends each with a diameter d2= 26 mm (see figure). The lengths of the segments of the bar are L1= 0.3 m and L2= 0.1 m. Quarter-circular fillets are used at the shoulders of the bar, and the modulus of elasticity of the brass is E = 100 GPa. If the bar lengthens by 0.12 mm under a tensile load P, what is the maximum stress ??maxin the bar?
A polyethylene tube (length L) has a cap that when installed compresses a spring (with under-formed length L1) by an amount ?? = (L1 = L). Ignore deformations of the cap and base. Use the force at the base of the spring as the redundant. Use numerical properties given in the boxes. (a) What is the resulting Force-in the spring, Fk? (b) What is the resulting Force in the tube, Ftl (c) What is the filial length of the tube, Lf? (d) What temperature change ?T inside the tube will result in zero force in the spring
Solve the preceding problem if the collar has mass M = 80 kg, the height h = 0.5 m, the length L = 3.0 m, the cross-sectional area A = 350mm2. and the modulus of elasticity E = 170 GPa.
A W410 × S5 steel column is compressed by a force P = 340 kN acting with an eccentricity e = 38 mm, as shown in the figure. The column has pinned ends and a length L. Also, the steel has a modulus of elasticity E = 200 GPa and yield stress y= 250 MPa. P = 340 kN If the length L = 3 m, what is the maximum compressive stress maxin (he column? If a factor of safety n =2.0 is required with respect to yielding, what is the longest permissible length Lmaxof the column?
Solve the preceding problem for a W 250 × 44.8 wide-flange shape with L = 3.5 m. q = 45 kN/m, h = 267 mm, b = 148 mm, rt = 13 mm, = 7.62 mm, d = 0.5 m, and a = 50 mm.
A solid circular steel cylinder S is encased in a hollow circular aluminum tube A. The cylinder and tube are compressed between the rigid plates of a testing machine which applies forces P. Calculate the allowable value of the compressive force if the yield stresses of sleel and aluminum are srs = 50 Ksi and ??A= 60 ksi, respectively. Assume that As= 12 in2. AA= 6 in2. L = 20 in., Es= 29,000 tsi and EA=10,600 ksi
Solve the preceding problem for the following data: diameter LO m, thickness 48 mm, pressure 22 MPa, modulus 210 GPa. and Poisson's ratio 0.29
Repeat Problem 2.3-18, but assume that the bar is made of aluminum alloy. If P2= 200 kN, what is P1so that displacement
.17 A mountain-bike rider going uphill applies torque T = Fd(F = l5lb, d = 4 in.) to the end of the handlebars ABCD by pulling on the handlebar extenders DE. Consider the right half of the handlebar assembly only (assume the bars are fixed at the fork at A). Segments AB and CD are prismatic with lengths L, = 2 in.andL3 = 8.5 in, and with outer diameters and thicknesses d01 = 1.25 in. 101 = 0.125 in. and d03 = O.87in.,i03 = 0.ll5in, respectively as shown. Segment BC’ of length L, = 1.2 in. however. is tapered, and outer diameter and thickness vary linearly between dimensions at B and C. Consider torsion effects only. Assume G = 4000 ksi is constant. Derive an integral expression for the angle of twist of half of the handlebar tube when it is subjected to torque T = Fd acting at the end. Evaluate ‘b1-, for the given numerical1ues.