Effects of Cyclic Waveforms with Superimposed High Frequency Flutter on the Corrosion Fatigue Behaviour of a Submarine Hull Steel
Abstract
In the past, several investigators have reported changes in the stress corrosion fatigue behavior when small amplitude high frequency flutter loading was superimposed on a static load or the hold portion of cycle waveform. In a more recent study it was reported that in the presence of seawater the fatigue life (basic trapezoidal cycles) decreased when the superimposed flutter frequency increased from 1 Hz to 20 Hz. Above 20 Hz, and up to 30 Hz at least, no further frequency dependence was observed. The significance of the past findings are of considerable practical importance especially dealing with a new steel (Australian designation BIS 812 EMA) for a submarine pressure hull application.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 01, 1991
- Accession Number
- ADA274876
Entities
People
- I. A. Burch
- M. Z. Khan
Organizations
- Defence Science and Technology Group