NASA NTRS · 19670000490
Material fatigue data obtained by card-programmed hydraulic loading system
Abstract
Fatigue tests using load distributions from actual loading histories encountered in flight are programmed on punched electronic accounting machine cards. With this hydraulic loading system, airframe designers can apply up to 55 load levels to a test specimen.
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Davis, W. T.. 1967-12-01. Material fatigue data obtained by card-programmed hydraulic loading system. https://ntrs.nasa.gov/citations/19670000490
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