4. creep A cylindrical rod of styrene acrylonitrile (SAN) is placed under 750 lby tensile loading at room temperature. C
Posted: Fri Jul 08, 2022 6:09 am
4. creep A cylindrical rod of styrene acrylonitrile (SAN) is placed under 750 lby tensile loading at room temperature. Calculate the minimum diameter required to support the load for 1000 hrs. without fracturing. Use the creep rupture strength data given below. (note: 10 p.s.i. - 1000 lb/in²) Stress, 10³ p.s.i. 8 7--- 6-- 5H 4 3 0.1 Time, hr. G H B 1.0 10 A-SAN at 23° C. B-Epoxy MC at 120° C. C-30% glass-reinforced nylon (dry) at 120° C. D-30% glass-reinforced PBT at 150° C. E-Mineral-filled phenolic MC at 120° C. 1000 10,000 F-Acetal at 80° C. G-Impact polystyrene at 23° C. H-Alkyd MC at 120° C.