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Applied Mechanics, Volume 1, Issue 4

2020 December - 2 articles

Cover Story: The fatigue lifetime of offshore pipelines with semi-elliptical circumferential surface cracks is often underestimated. An accurate prediction of the pipeline structural integrity is important in order to prevent unnecessary and expensive downtime and ultimately improve the reliability of the pipeline. The estimation of fatigue crack growth in pipelines is highly dependent on the calculation of crack driving parameters, such as the stress intensity factor and the 3D J-integral. This paper presents a numerical study to predict the fatigue lifetime of cracks in offshore pipes, determining the J-integral that includes first and second derivatives of the displacement field obtained by finite element method (FEM) for pipes containing a range of circumferential internal and external surface cracks. View this paper

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Feature Paper
Article

9 Citations

4,545 Views

31 Pages

Finite Element Analysis of Fatigue in Offshore Pipelines with Internal and External Circumferential Cracks

Ayodeji Olamide,
Abdeldjalil Bennecer and
Stefan Kaczmarczyk

Appl. Mech.2020, 1(4), 193-223;https://doi.org/10.3390/applmech1040013

24 November 2020

Fatigue lifetime of offshore pipelines with semi-elliptical circumferential surface cracks is often underestimated. An accurate prediction of the pipeline structural integrity is nevertheless important in order to prevent unnecessary and expensive do...

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Article

11 Citations

4,544 Views

19 Pages

Robust Filtering Options for Higher-Order Strain Fields Generated by Digital Image Correlation

Nedaa Amraish,
Andreas Reisinger and
Dieter H. Pahr

Appl. Mech.2020, 1(4), 174-192;https://doi.org/10.3390/applmech1040012

11 October 2020

Digital image correlation (DIC) systems have been used in many engineering fields to obtain surface full-field strain distribution. However, noise affects the accuracy and precision of the measurements due to many factors. The aim of this study was t...

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Appl. Mech. - ISSN 2673-3161

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