Can someone please help me with these materials science questions? Detailed answ
ID: 1004286 • Letter: C
Question
Can someone please help me with these materials science questions? Detailed answers would be highly appreciated. Thank you.
A metal chain used to repeatedly raise and lower loads less than the yield strength of the chain metal fails and examination of the failed links shows considerable roughening at the failure site. What was the failure most likely due to and explain what types of inspection would ensure that this type of failure might be prevented? A gas turbine blade in a turbine that spins at high-speed fails and examination reveals no necking near the break. The fracture surface is relatively smooth but some other small cracks are observed at other locations on the crankshaft. What do you think happened? Very old buildings with small glass window panels often show that the panels are thicker on the bottom than on the top. This has been attributed to creep in the glass. Given that these panes were typically found in places like the UK where temperatures barely ever exceed 100F do you think this is a likely explanation? Why or why not?Explanation / Answer
The failure is due to repeated rubbing of the chain on hard and rough material like concrete repeated examination of material that undergoes wear and tear will prevent this from repeating.
The wear is due to fracture creating meaning a fracture that travels and gives way atcweak links. This can be prevented by repeated inspection.
The windows are made of glass which by definition is a highly viscous liquid that flows over time. The time is ofcourse dependent on time and temperature. So this thickening at the bottom is a likely explanation