{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

Midtem+II_F-07_

Midtem+II_F-07_ - ME 382 Fall 2007 Mid-term 2 Monday This...

This preview shows pages 1–3. Sign up to view the full content.

1 ME 382 Fall 2007 Mid-term 2 Monday, November 19, 2007 This is a closed book exam; students are allowed to use an unmarked copy of the ME382 data book. Answer all questions. Show all calculations (on this exam) for full credit. There are a total of 10 pages to this exam. Use a ruler / straight edge to read from graphs for full credit Name: Section: Honor Pledge:

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
2 Question 1 You are part of a design team charged with designing a thin-walled spherical pressure vessel that will have a radius of 2.00 m. The pressure vessel will have to survive 1000 cycles of being pressurized between 4.00 MPa and 0.00 MPa. The pump cannot maintain pressure once there is a leak in the wall of the vessel. Any crack in the pressure vessel may be assumed to originate from the surface and to be semicircular with a radius of a . The mode-I stress intensity factor is given by K I = σ π a , where the stress is the stress normal to the crack. The pressure vessel is to be made out a steel that has a fracture toughness of 130 MPa m
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 10

Midtem+II_F-07_ - ME 382 Fall 2007 Mid-term 2 Monday This...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online