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Question: pbt properties density 1314 10a3 tensile strength at yield 8...

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PBT properties Density 1.3-1.4 10A3 tensile strength at yield 8 - 8.5 Elongation at break 100 300 1045 psi tensile modulus 2.83.1A weight of 10 kg is suspended from a 20 cm long bar with width = 2 cm and thickness = 2 mm. The bar is made from PBT (Pocan B1505). Using the linear (E - 2.8 GPA) and nonlinear analyses (Eo 2.9 GPa, E1 38.5 GPa), calculate the change in the length of the bar. Repeat the calculations fora suspended weight of 100 kg. Compare the predictions from the linear and nonlinear analyses. 10 3.2 A thin tube with outer diameter Do 3.0 cm and inner diameter D 2.9 cm is made from Acetal (Delrin 500). If the plastic tube is pulled over a steel rod with diameter D 3.0 cm, calculate the hoop stress in the plastic tube using (i) linear (E 3 Gpa) analysis, ii) nonlinear (Eo 3.1 Gpa and E1 41.7 Gpa) analysis. For the thin plastic tube, neglect the radial stresses

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