Exercises

Complete the preceding Pressure Vessel tutorial before attempting the following exercises. 

Exercise 1:

For what average-radius-to-thickness (R_i + R_o)/2t will the ratio of hoop stress at the inner radius,  R_i, be 10% larger than the hoop stress at the outer radius, R_o? We may decide this represents a reasonable definition for one's "line in the sand", i.e. a ratio below which thick-walled theory should be considered more accurate for validation purposes.

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Investigate catastrophic failures in Aluminum 80 SCUBA tanks and comment on your findings relative to these failures.

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