Title
Fatigue assessment and monitoring of a dented pipeline specimen
Date Issued
01 January 2019
Access level
metadata only access
Resource Type
conference paper
Author(s)
Freire J.L.F.
Paiva V.E.L.
Vieira R.D.
Maneschy J.E.
D'Almeida A.L.F.S.
Ribeiro A.S.
Pontificia Universidad Católica de Río de Janeiro
Publisher(s)
American Society of Mechanical Engineers (ASME)
Abstract
The present paper reports initial results from an investigation program launched with the objective of presenting combinations of analytical, experimental and numerical methods to predict and monitor fatigue initiation and fatigue damage progression in equipment such as pressure vessels, tanks, piping and pipelines with dents or complex shaped anomalies. The monitoring of fatigue initiation and propagation in the actual specimens used nondestructive infrared inspection techniques. Thermoelasticity stress analysis (TSA), three-dimensional digital image correlation (3D-DIC) and fiber optic Bragg strain gages (FBSG) were used to determine strains at fatigue hot spots locations. Strain fields determined from the experimental measurements and from finite element analysis (FEA) were combined with the fatigue Coffin-Manson strain-life equation and the Miner's fatigue damage rule to predict fatigue life (Nc). Results from one tested 3 m long tubular specimen containing a complex shaped dent are reported and fully analyzed.
Volume
1
Language
English
OCDE Knowledge area
Ingeniería mecánica
Scopus EID
2-s2.0-85075825647
Source
American Society of Mechanical Engineers, Pressure Vessels and Piping Division (Publication) PVP
ISSN of the container
0277027X
ISBN of the container
9780791858929
Conference
ASME 2019 Pressure Vessels and Piping Conference, PVP 2019
Source funding
Petrobras
Sponsor(s)
The authors acknowledge the Centro de Tecnologia de Dutos, CTDUT, where the thin walled pipe test was performed. Pipe test results were determined during a research project (0050-0101-263-16-9) sponsored by Petrobras.
Sources of information: Directorio de Producción Científica Scopus