400 mm 150 mm 150 mm в 200 mm 200 mm 300 mm 80 N 80 N 200 N 200 N 400 N 400 N

how to do

4/61 The depicted structure is under consideration as the upper portion of a transmission-line tower and is supported at points F, G, H, and I. Point C is directly above the center of rectangle FGHI. Determine the force in member CD. A L 2a B 1.5a 1.5a G\ a C 1.5a H D 2a CD=2.4L E L 1.25a 1.25α

The solid bar has a diameter of 50 mm. The two forces and the torque Tx are acting at the origin of the x-y-z coordinate system which is coincident with the centroid of the cross-section of the bar; the 1800 N force is acting in the y-z plane and torque Tx is acting about the x-axis. Determine the state of stress at points A and B, and show the respective stress components acting on differential elements located at these two points. 200 mm/ y 200 mm 1200 N Tx = 40 N.m %3D 1800 N

The beam supports the distributed load shown. Determine the resultant internal loadings acting on the cross-section at point C. Assume the reactions at the supports A and B are vertical.

Problem 3, The metal stud punch is subjected to a force of 120 N on the handle. Determine the magnitude of the reactive force at the pin A and in the short link BC. Also, determine the resultant internal. loadings acting on the cross section at point E. B 50 mm 100 mm 4 50 mm D 100 mm 200 mm 120 N 300 min

Determine the resultant internal loadings acting on the cross-section of the frame at points F and G. The contact at E is smooth.

Determine the resultant internal normal and shear force in the member at (a) section a–a and (b) section b–b, each of which passes through the centroid A. The 500-lb load is applied along the centroidal axis of the member.

*3-8. The strut is supported by a pin at C and an A-36 steel guy wire AB. If the wire has 'a diameter of 5 mm, determine how much it stretches when the distributed load acts on the strut. 60 3.4 kN/m 2.7 m

The copper pipe has an outer diameter of 2.50 in. and an inner diameter of 2.30 in. If it is tightly secured to the wall and three torques are applied to it, determine the shear stress developed at points A and B. These points lie on the pipe’s outer surface. Sketch the shear stress on volume elements located at A and B.