i want calculation part of this doc.

Part $2$: Polycarbonate Design Calculation $($worth $35\%$ of the assignment$).$

A series of creep tests have been performed on the most suitable grade of polycarbonate. These

have been done in tension at different temperatures from $20C$ to $60C,$ for a period of $1$ week each.

The data from these tests is given in the accompanying Excel file, as compliance versus time.

You should determine the shift factors on the time axis that will bring these curves together as a

single curve at one of the temperatures tested $($using the time$-$temperature superposition method$).$

You should then plot the shift factors as a function of temperature and then use these to construct a

"master curve" at your operating temperature $($from the table above$).$

It is known that polycarbonate can suffer from long$-$term crazing and cracking if the strain goes

above $0\mathrm{.}007(0\mathrm{.}7\%).$ Use your master curve to determine the wall thickness required to keep within

this limit$.$ Assume the material behaves as a linear viscoelastic material over the range of stress used

for the application. Assume the Poisson's ratio is $0\mathrm{.}35.$ You can ignore the inlet and outlet pipes and

assume the component is a closed cylinder shape.

Marking Guide:

Creation of mastercurve at ref temp $(10\%)$

Determination of shift factors $(5\%)$

Master curve at required temperature $(5\%)$

Calculation of $t(5\%)$

Clear explanation $(10\%)$ Part $3($worth $30\%$ of the assignment$).$

The polymer used will be operating with UV radiation over its lifetime. You should do some

information gathering to find out the key features of how polymers are affected by UV$.$ You should

then write an overview section to inform your manager of the mechanisms, and how this aspect

might influence the materials selection choices and design calculations needed. You could suggest or

specify further tests that might be needed and include $2$ or $3$ key references that would direct

readers to more in$-$depth material. The design takes a conservative approach and assumes that it needs to operate continually at a fixed

internal water pressure and temperature for a period of $3$ years. The internal pressure and

temperature of operation vary depending on your student number, as in the tables below. For

example, if your student number is $1903482$ then your last digit is $2,$ so the pressure is $380$kPa and

the last but one digit is $8,$ so the temperature is $43C.$