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X. Pitoiset, A. Preumont, "Frequency Domain Methods to Predict the Multiaxial Random Fatigue Failure of Metallic Structures with Finite Elements", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 173-181, 2000. doi:10.4203/ccp.67.3.3

Abstract

This paper presents computationally efficient frequency domain methods for estimating the high-cycle fatigue life of metallic structures subjected to a random multiaxial loading. The equivalent von Mises stress method proposed earlier by the senior author is first reviewed. It is then shown how a nonzero mean stress can be accounted for by using the hydrostatic pressure in connection with the Goodman diagram. The consistency of the results are checked by comparison with a time domain method based on the critical plane. It is observed that frequency domain methods produce enormous computer savings and correlate fairly well with the time domain method in terms of localizing the critical areas in the structure. A frequency domain implementation of Crossland's failure criterion is also proposed; it is found in very good agreement and much faster than its time domain counterpart.

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Front Page Browse CCP CSETS CTR IJRT Other Authors Search Purchase Guide FAQ Contact us	Civil-Comp Proceedings ISSN 1759-3433 CCP: 67 COMPUTATIONAL TECHNIQUES FOR MATERIALS, COMPOSITES AND COMPOSITE STRUCTURES Edited by: B.H.V. Topping Paper III.3 Frequency Domain Methods to Predict the Multiaxial Random Fatigue Failure of Metallic Structures with Finite Elements X. Pitoiset and A. Preumont Active Structures Laboratory, Université Libre de Bruxelles, Brussels, Belgium doi:10.4203/ccp.67.3.3 purchase the full-text of this paper Full Bibliographic Reference for this paper X. Pitoiset, A. Preumont, "Frequency Domain Methods to Predict the Multiaxial Random Fatigue Failure of Metallic Structures with Finite Elements", in B.H.V. Topping, (Editor), "Computational Techniques for Materials, Composites and Composite Structures", Civil-Comp Press, Edinburgh, UK, pp 173-181, 2000. doi:10.4203/ccp.67.3.3 Abstract This paper presents computationally efficient frequency domain methods for estimating the high-cycle fatigue life of metallic structures subjected to a random multiaxial loading. The equivalent von Mises stress method proposed earlier by the senior author is first reviewed. It is then shown how a nonzero mean stress can be accounted for by using the hydrostatic pressure in connection with the Goodman diagram. The consistency of the results are checked by comparison with a time domain method based on the critical plane. It is observed that frequency domain methods produce enormous computer savings and correlate fairly well with the time domain method in terms of localizing the critical areas in the structure. A frequency domain implementation of Crossland's failure criterion is also proposed; it is found in very good agreement and much faster than its time domain counterpart. purchase the full-text of this paper (price £20) go to the previous paper go to the next paper return to the table of contents return to the book description purchase this book (price £92 +P&P)
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