15 mm A B 600 mm 400 mm (a) o (MPa) 56.6 60- 50 - F oy = 40 30 20 EBc = 0.0450 10 0.02 0.04 0.06 (b) um rod shown in Fig. 3-20a has a circular cross section to an axial load of 10 kN.If a portion of the stress-strai n Fig. 3-20b, determine the approximate elongation of oad is applied. Take Eal= 70 GPa.

Q: For the beam shown: 3. Draw the free-body diagram (FBD) and determine the reactions at the supports…

A: Data given F = 40 kN M = 40 kNm L =1m σall = 100 MPa Find: (a) FBD with reaction at supports (b)…

Q: F 1-87 The steel swivel bushing in the elevator control of an airplane is held in place using a nut…

A: Given Maximum shear stress=21 ksi Average normal stress = 60 ksi  d=Diameter of washer=0.75 in…

Q: The stresses shown in the figure act at a point in a stressed body. Determine the normal and shear…

A: Given: Sx=7200 psi Sy=2300 psi  θ=64o  To find: Normal and shear stresses

Q: 4.2 Knowing that the couple shown acts in a vertical plane, de- the stress át (a) point A, (b) point…

A: Ans are stress at A is 72.869 kilo ponds per square inch  Stress at B is 54.64 kilo pounds square…

Properties of materials

A property of a material describes its characteristics and distinguishes it from the others. The material properties are described it in terms of its hardness, color, appearances, and so on. The material properties generally depend on the type of material, or whether it is a metal or an alloy. There are different kinds of material properties such as mechanical properties, thermal properties, physical properties, and chemical properties. Chemical properties describe the material in terms of a chemical change. The mechanical properties come into existence when the material is acted upon by an external load. Thermal properties are associated with the temperature of the material and specific heat.