Development of a Fatigue Lifetime-Load Spectrum for a Large-Scale Aluminum Ship Model

JT Birmingham; NV Marchica; FF Borriello; JE Beach

doi:10.1520/STP35869S

SYMPOSIA PAPER Published: 01 January 1979

STP35869S

Development of a Fatigue Lifetime-Load Spectrum for a Large-Scale Aluminum Ship Model

Source

The fatigue load spectrum to be applied to the 30-m aluminum ship-evaluation model (ASEM) is presented. The ASEM will be tested in the David W. Taylor Naval Ship Research and Development Center, Carderock, Maryland. Spectra developed for design, analysis, and test purposes are given, based on a reference lifetime-load spectrum developed for a 90-m aluminum ship. Selected ship trial results that provide the basis for developing the lifetime-load spectrum for the 90-m ship are also presented. Results of sensitivity studies of fatigue crack growth indicate that a repeatable 1/100-year block spectrum, sequenced in a low-to-high-to-low order is a practicable compromise for fatigue testing ASEM.

Author Information

Birmingham, JT

Science Engineering Analysis Co., Bethesda, Md.

Marchica, NV

David W. Taylor Naval Ship Research and Development Center, Bethesda, Md.

Borriello, FF

Naval Air Development Center, Warminster, Pa.

Beach, JE

David W. Taylor Naval Ship Research and Development Center, Bethesda, Md.

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Details

Developed by Committee: E08

Pages: 121–143

DOI: 10.1520/STP35869S

ISBN-EB: 978-0-8031-4741-6

ISBN-13: 978-0-8031-0721-2

Development of a Fatigue Lifetime-Load Spectrum for a Large-Scale Aluminum Ship Model

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