The radial displacement pressure vessel across the thickness (inner radius a=125mm, outer radius b=200mm) follows a differential equation d'u 1 du u + dr? r dr r? In a condition of internal pressure,...

Extracted text: The radial displacement pressure vessel across the thickness (inner radius a=125mm, outer radius b=200mm) follows a differential equation d'u 1 du u + dr? r dr r? In a condition of internal pressure, the displacement of inside (r=a and outside r=b) should be set as 0.0968275mm and 0.0769240 mm respectively. (a) Illustrate the cross-section of the pressure vessel and the boundary condition of the displacement. Next, illustrate the 1 dimensional model of across the thickness if divided by four nodes with the same distance (four equidistance nodes). (b) Determine the radial displacement profile using the Finite Difference