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Unformatted text preview: and you are to select materials for the fuel tank (pressure vessel). a) Considering the flight will be at high altitude (the edge of space), suggest materials that will have a good fracture toughness low temperature. THe M1 index should consider brittle failure under a displacement-limited design. Find materials with M1 > 10. b) To increase passenger safety and spacecraft performance, consider M2 a second material index for energy-limited failure under fracture at minimum mass. Hint: Recall that toughness is the integral of the stress-strain curve (energy), and find an index that will maximize fracture toughness....
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This note was uploaded on 04/28/2010 for the course ENGN 45 taught by Professor Wendy during the Fall '09 term at City College of San Francisco.
- Fall '09