5.3.5 Part A Figure 1 P = HÅ 50° Value 3m Determine the greatest load P that can be applied to the truss so that none of the members are subjected to a force exceeding either 3 kN in tension or 1.2 kN in compression. (Figure 1) Express your answer to three significant figures and include the appropriate units. 60° Units B00 ? B

Determine the force in member BE of the loaded truss. Enter a positive number if in tension, negative if in compression. 11' B 14' 15° 15° F E 11' 15° 1.0 L 1.7L 15° 45° A Answer: BE = i !L 45° D

Q3: determine shear stress (t) for each 16-mm diameter bolt. 40 kN 40 kN 30 mm 80 kN 30 mm

After an unfortunate accident occurred at a local warehouse, you were contracted to determine the cause. A jib crane collapsed and injured a worker. An image of this type of crane is shown in the figure.The horizontal steel beam had a mass of h 80.00 kg per meter of length, and the tension in the cable was T = 12170 N. The crane was rated for a maximum load of d 500 kg. If d 5.580 m, s = 0.522 m, x = 1.850 m, and h = 1.890 m, what was the magnitude of WL (the load on the crane) before the collapse? The acceleration due to gravity is g = 9.810 m/s². WL WL = N What was the magnitude of force Fp at the attachment point P? Fp N

7. Carbon steel is tested in uniaxial tension, as shown in the inset schematic, to produce the following stress-strain diagram. 600 500 MPa 600 g 400 400 300 200 200 100 0.005 0.05 0.10 0.15 Strain E Figure 1: Stress vs. strain for plain carbon steel. Note: the inset shows the initial portion of the data, magnified for clarity. a) From the Figure 1, determine the following material properties: (i) elastic modulus, E, (ii) ultimate tensile strength, UTS, (iii) yield stress, oy. b) Label the following regions or points on the figure: (i) fracture point, (ii) plastic region, (iii) elastic region. 8. You wish to design a new bone screw used to hold fractured bone segments together or to hold implants in place. Describe what type of material you would use and what considerations you need to make. 27°F Cloudy Stress (MPa) a

The Force of resistance per unit area offered by a body against deformation is the stress. Is this statement correct?