Contact Problem for an Elastic Layer on an Elastic Half Plane Loaded by Means of Three Rigid Flat Punches

Figure 3

Contact stress distribution between elastic layer and elastic half plane for the cases of continuous (𝜆<𝜆_cr) and discontinuous contact (𝜆>𝜆_cr) (𝑄=2𝑃, 𝜇₂/𝜇₁=2.75, 𝑎/ℎ=0.25, (𝑏−𝑎)/ℎ=1.5, and (𝑐−𝑏)/ℎ=0.5).