Simplified equations for natural frequencies of pipes on elastic foundation conveying gases

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Finite element analysis for free vibration of pipes conveying fluids–physical significance of complex mode shapes

S Attia, M Mohareb, M Martens, S Adeeb - Thin-Walled Structures, 2024 - Elsevier
A finite element formulation is presented for the natural vibration analysis of pipes conveying
fluids. The solution of the resulting quadratic eigenvalue problem generally yields complex …
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A fuzzy-random fields approach for assessing the natural frequencies of corroded pipes conveying fluids

AM Abdelmaksoud, F Oudah, I Nikolaidis, S Adeeb… - Engineering …, 2024 - Elsevier
Evaluating the dynamic behavior of corroded pipelines conveying fluids is essential to guard
against resonance and fatigue failures. However, existing solutions for obtaining the …
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Fuzzy-probabilistic evaluation for the dynamic instability of corroded buried pipes conveying fluids

S Attia, F Oudah, AM Abdelmaksoud - Engineering Structures, 2025 - Elsevier
This study develops fuzzy-probabilistic models to investigate the dynamic instability (ie, the
first instability point) of corroded buried pipes conveying fluids. The models are developed …
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