7 in figure 7 a polyethylene bar having diameter di is placed inside a
Question
7. In Figure 7, a polyethylene bar having diameter di is placed inside a steel tube having inner diameter d2. The polyethylene bar is then compressed by an axial force
P. Find the expression of P that will make the space between the polyethylene bar and the steel tube be closed. For polyethylene, assume Young's modulus is E and Poisson's ratio is v