Explain what exactly is occurring during polymer creep

Assignment Help Mechanical Engineering

Reference no: EM13717689

Question: (a) Polystyrene has a yield stress of 30 MPa. The material is subjected to a 20 MPa tensile load. Will the material behave elastically? (b) Explain what exactly is occurring during polymer creep.

Reference no: EM13717689

Questions Cloud

Determine the r-134a exit temperature : Saturated R- 134a vapor enters a compressor at 68F. At compressor exit, the specific entropy is the same as that at the inlet, and the pressure is 80 psia. Determine the R- 134a exit temperature and the change in the enthalpy of R- 134a.

What should the mole percent of oxygen in diving gas : At an underwater depth of 245ft, the pressure is 8.39atm. What should the mole percent of oxygen be in the diving gas for the partial pressure of oxygen in the mixture to be 0.21 atm, the same as in air at 1 atm?

Bay area community college : 6. Bay Area Community College (BACC) has collected data comparing the starting salaries of their graduating students with last names beginning with the letters A through M with those whose last names begin with N through Z. The first category,..

Define what mass of ni(co)4 is allowable in a laboratory : The present maximum allowable concentration in laboratory air during an 8-hr workday is 1 ppb (parts per billion) by volume, which means that there is one mole of Ni(CO)4 for every 109 moles of gas. Assume 23?C and 1.00 atm pressure. What mass of ..

Explain what exactly is occurring during polymer creep : Question: (a) Polystyrene has a yield stress of 30 MPa. The material is subjected to a 20 MPa tensile load. Will the material behave elastically? (b) Explain what exactly is occurring during polymer creep.

Calculate the partial pressure of the diethylether : Calculate the partial pressure of the diethylether. P = atm Part B) Calculate the total pressure in the container. P = ?atm

A certain printer cartridge has demonstrated a mean time : A certain printer cartridge has demonstrated a mean time usage of 9 hours and a standard deviation of 22 minutes. What time usage guarantee (in hours) should the manufacturer advertise in order to ensure that only 4% of the cartridges fail to ..

Perfect crystal of copper is tensile tested : A perfect crystal of copper is tensile tested. The crystal is oriented so that the direction perpendicular to its slip plane is at 28° relative to the tensile direction. Consider three possible slip directions (relative to the tensile direction) of 8..

Calculate gas volume when the bubble reaches : A gas bubble with a volume of 1.0mm3 originates at the bottom of a lake where the pressure is 2.9 atm. Part A Calculate its volume when the bubble reaches the surface of the lake where the pressure is 735torr

User Account

All Pages