1) 0.5. For a homogeneous (k = 0) circular cylinder, yielding starts at internal surface whereas for a circular cylinder made of nonhomogeneous material (k < 0, non-homogeneity increases radially), yielding www.selleckchem.com/products/ABT-263.html takes place at any radius r where a < r < b depending upon values of C0 and k. Effective pressure is maximum at internal surface for cylinder made of nonhomogeneous as well as homogeneous material. It is seen from Figure 1 that for homogeneous cylinder, high effective pressure is required for initial yielding than that of nonhomogeneous cylinder. Also, for cylinder made of homogeneous material, effective pressure required for initial yielding is less for highly compressible circular cylinder whereas for circular cylinder made of nonhomogeneous materials, high effective pressure is required for highly compressible cylinder.
It is also seen from Figure 2 that pressure (internal/external) is maximum at external surface for cylinder made of nonhomogeneous as well as homogeneous material. It is also seen that homogeneous cylinder requires high pressure for initial yielding than that of nonhomogeneous cylinder. Also, high pressure is required for initial yielding for highly compressible homogeneous cylinder whereas less pressure is required for highly compressible nonhomogeneous cylinder. Figure 1Effective pressure required for initial yielding for homogeneous and nonhomogeneous circular cylinder for different compressibility parameters.Figure 2External or internal pressure required for initial yielding for homogeneous and nonhomogeneous circular cylinder (internal or external = 20) for different compressibility parameters.
It has also been observed from Figure 3 that, for homogeneous and nonhomogeneous circular cylinder, effective pressure required for fully plastic state is maximum at the internal surface and for nonhomogeneous AV-951 material less effective pressure is required for fully plastic state for circular cylinder made of highly compressible material. It is also observed that effective pressure required for fully plastic state is more for cylinder made of homogeneous material than that of nonhomogeneous material. For homogeneous/nonhomogeneous circular cylinder, pressure (internal/external) required for fully plastic state is maximum at the external surface. It has been seen from Figure 4 that for nonhomogeneous cylinder made of highly compressible material, high pressure is required for fully plastic state. It is also observed from Figure 4 that pressure required for fully plastic state is more for cylinder made of nonhomogeneous material than that of homogeneous material. Figure 3Effective pressure required for fully plastic state for homogeneous and nonhomogeneous circular cylinder for different compressibility parameters.