A simple structure is to be built to hold load at C as shown in Figure Q5. Body ABC is pin joint at wall A is regarded as a rigid body and is pin supported to rod BD at B. The respective dimensions are as shown in the figure. A support unit is to be connected by pin between point B and point D or point D' at the wall. a) Compare and analyze the two positions for the support unit not to fail by buckling when maximum load F is applied at C. Which position is the better choice between D and D' ? b) If load F is in opposite direction, what is the maximum load F that can be applied. (Properties of rod BD, E= 200GPA, G=77 GPa, v=0.3, ơy = 250 MPa )

A simple structure is to be built to hold load at C as shown in Figure Q5. Body ABC is pin joint at wall A is regarded as a rigid body and is pin supported to rod BD at B. The respective dimensions are as shown in the figure. A support unit is to be connected by pin between point B and point D or point D' at the wall. a) Compare and analyze the two positions for the support unit not to fail by buckling when maximum load F is applied at C. Which position is the better choice between D and D' ? b) If load F is in opposite direction, what is the maximum load F that can be applied. (Properties of rod BD, E= 200GPA, G=77 GPa, v=0.3, ơy = 250 MPa )

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 2.2.12P: A small lab scale has a rigid L-shaped frame ABC consisting of a horizontal aim AB (length b = 30...

See similar textbooks

Similar questions

A small lab scale has a rigid L-shaped frame ABC consisting of a horizontal arm AB (length b = 10 in.) and a vertical arm BC (length c = 7 in.) pivoted al point B. The pivot is attached to the outer frame BCD that stands on a laboratory bench. The position of the pointer al C is controlled by a spring, Jt = 5 lb/in., that is attached to a threaded rod. The pitch of the threads is p = 1/16 in. Under application of load W, 12 revolutions of the nut are required to bring the pointer back to the mark. Calculate the weight W.
Repeat Problem 2.5-9 for the flat bar shown in the figure but assume that and that
A small lab scale has a rigid L-shaped frame ABC consisting of a horizontal aim AB (length b = 30 cm) and a vertical arm BC (length c = 20 cm) pivoted at point B. The pivot is attached to the outer frame BCD that stands on a laboratory bench. The position of the pointer at C is controlled by two parallel springs, each having a spring constant k = 3650 N/m. that are attached to a threaded rod. The pitch of the threads is p = 1.5 mm. If the weight is 65 N. how many revolutions of the nut are required to bring the pointer back to the mark?
A cable and pulley system in the figure part a supports a cage of a mass 300 kg at B. Assume that this includes the mass of the cables as well. The thickness or each of the three steel pulleys is t = 40 mm. The pin diameters are dPA= 25 mm, dB= 30 mm. and dc= 22 mm (see figure part a and part b). (a) Find expressions for the resultant forces acting on the pulleys at A, B. and C in terms of cubic tension T. (b) What is the maximum weight W that can be added to the cage at B based on the following allowable stresses? Shear stress in the pins is 50 MPa; bearing stress between the pin and the pulley is 110 MPa.
E T-50" 60 C Force ? Suppose rod AB is hinged to a fixed wall. Rope CDE is attached to the rod at C, 4 from the hinge. The rope passes over a pulley D. which is mounted on another fixed wall. The angle ACD is 60 degree. The other end of the rope is connected to a mechanism (not shown), which requires 50 lb. force to be actuated. How much downward hand force will be required at point B. 5' from the hinge, to actuate the mechanism? When the hand force is applied, what reaction force will be developed in hinge A? Assume the rod is weightless, rigid and amply strong and the rope is flexible and amply strong.
Draw using tip to tail method please show steps 4-3. Draw a free-body diagram of member BD in Figure P4-3. 10 40 mm 60 mm mm В 50 N 15 mm 15 mm
- For the spring system given in Figure 1, Create the element matrices as well as the global stiffness and force matrix, note that k=1. Figure 1
PROBLEMFor the plane truss given below, using the Matrix Stiffness Analysis method, determine;• Determine displacements of the joints• Determine the forces in the truss members• Determine the support reactionsNote that the whole system has 4 nodes and hence 8 degrees of freedom. These degrees of freedomsare shown (in their positive directions) on the right hand side of the problem picture (1 to 8). So, thesystem stiffness matrix, K, will be 8x8 in size.Force and displacement units should be consistent (mm’s and N’s for example)
The spring clamping force Fg = 2 N. The contact pressure force FA and the joint forces Fg at the jump piece 1 should be determined for the toggle mechanism with a straight guide shown in figure. C 26 mm B 2 10 mm A 1 8 mm 7 mm D 10 mm 15 10 ww ww
L1 z plane on to L2 L3 (o, 0.0) A tripod shown supports a load of P = 1000 N at point A. Take note that ball and socket joints are used to mount the triopd at points B, D, and C. Consider the following: L1 = 2 L2 = 4 L3 = 5 e = 45° a = 30° Point C coordinates: (2, -2, 3) Determine the following: Force of AB = N Force of AC = N Force of AD =
Hi, I have been given this pin-jointed frame analysis to solve (see pictures of the structure attached). Can you help me? The Figure 2 attached is a simplified structure to undertake a structural analysis on a concept design for a low cost stroller/buggy for children. The buggy consists of a number of metal sections that are pin-jointed together. The buggy is designed to accommodate a child of mass no more than 20 kg, sat on the seat which is supported at four points (Fc) on the frame of the buggy. Assume that the weight of the child is equally distributed across all of the points indicated on Figure 2 as Fc. Assume that there are no additional forces applied to the handle of the buggy, that the buggy is static (stationary) and that the buggy, and the elements of the frame have no mass. At points A and G, there are roll supports. At Points B, F and D there are the pin supports. I am required to determine the following: 1) Draw a free-body diagram of the structure 2) Simplify the Free…
Please show tip to tale method steps 4-4. Draw a free-body diagram of member AC in Figure P4-4. to -2 m 3 m A T B C 1 12 50 kN FIGURE P4-4 LO