A joint between two concrete slabs A and B is filled with a flexible epoxy that bonds securely to the concrete (see figure). The height of the joint is h =100 mm, its length is L =1.0 m, and its...

A joint between two concrete slabs A and B is filled with a flexible epoxy that bonds securely to the concrete (see figure). The height of the joint is h =100 mm, its length is L =1.0 m, and its thickness is t =12 mm. Under the action of shear forces V, the slabs displace vertically through the distance d = 0.048 mm relative to each other. Study the diagram carefully and answer the following questions.

(a) What is the average shear strain γaver in the epoxy? (b) What is the magnitude of the forces V if the shear modulus of elasticity G for the epoxy is 960 MPa?