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Bellows flow-induced vibrations (1979)

Johnson, J. E. ; Astleford, W. J. ; Deffenbaugh, D. M. ; [et al.]

In: CASI

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Publication Date: 2019-06-28

Description: Results of theoretical and experimental investigations of bellows typical of those found in space shuttle external tanks are presented. Correlation parameters are identified which generalize the alternating stress calculations cited in an earlier study. Alternating stress amplitudes and mean stress levels form the basis of a fatigue analysis incorporating seven ordinate charts for 347 stainless steel, alloy 21 6-9, and Inco 718. A crack propagation model is included with a program for computing bellows fatigue life. Two phase flow and material hardness properties are discussed.

Keywords: FLUID MECHANICS AND HEAT TRANSFER

Type: NASA-CR-161308

Format: application/pdf

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