Fracture Mechanics Technology for Optimum Pressure Vessel Design

J. Bjeletich; T. Morton

doi:10.1520/STP49656S

SYMPOSIA PAPER Published: 01 January 1973

STP49656S

Fracture Mechanics Technology for Optimum Pressure Vessel Design

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A technique has been developed to design a maximum efficiency reliable pressure vessel of given geometry and service life. The technique for ensuring reliability of the minimum weight vessel relies on the application of linear elastic fracture mechanics and fracture mechanics concepts. The resultant design incorporates potential fatigue and stress corrosion crack extension during service of a worst case initial flaw. Maximum stress for safe life is specified by the design technique, thereby minimizing weight. Ratios of pressure and toughness parameters are employed to avoid arbitrary specification of design stress level which would lead to a suboptimum design.

Author Information

Bjeletich, J., G.

Division of Lockheed Aircraft Corp., Palo Alto, Calif.

Morton, T., M.

Division of Lockheed Aircraft Corp., Palo Alto, Calif.

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Details

Developed by Committee: E08

Pages: 439–460

DOI: 10.1520/STP49656S

ISBN-EB: 978-0-8031-8151-9

ISBN-13: 978-0-8031-6660-8

Fracture Mechanics Technology for Optimum Pressure Vessel Design

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