STRESS AND STRAIN IN COMPOSITE BAR

Any tensile or compressive member which consists of two or more bars in series, usually of different materials, is called composite bars (Figure 12.18). In this case, load on both the rods will be same but strain produced will be different.

Figure 12.18 Composite Bar

where A₁, E₁ ∈₁ are cross-section area, modulus of elasticity, and strain produced in material 1.

Similarly, A₂, E₂, ∈₂ are cross-section area, modulus of elasticity, and strain produced in material 2.