Analysis of compressive forces in CFGFT cylindrical pillars and their coatings using laboratory tests and metric spaces

•Experiments on compressing polymer tubes with or without concrete core were made.•Mathematical models of the columns were created in metric spaces.•These models describe relations between column shortening and compressive force.•The measured discrete signals were transitioned to the continuous desc...

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Bibliographic Details
Published in:Measurement : journal of the International Measurement Confederation 2019-08, Vol.142, p.113-121
Main Authors: Abramski, M., Mieloszyk, E., Milewska, A.
Format: Article
Language:English
Subjects:
Composite materials
Composite pillar coating
Compressive forces
Fiber composites
Fiber reinforced concretes
Fiber reinforced plastics
Fiber reinforced polymers
Glass fiber reinforced plastics
Laboratory tests
Material properties
Mechanical properties
Model identification
Poles
Polymer matrix composites
Protective coatings
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Summary:•Experiments on compressing polymer tubes with or without concrete core were made.•Mathematical models of the columns were created in metric spaces.•These models describe relations between column shortening and compressive force.•The measured discrete signals were transitioned to the continuous description.•Criteria were proposed for a choice of optimal model. The article discusses compressive forces tests in composite-concrete pillars with the use of laboratory active experiment including the factors and properties of materials which have a significant impact on the test results and their repeatability. A polymer composite based on glass fiber reinforced resin with different fiber beam angles (20°, 55° and 85°) was used as a buffer/coat of the pole. Due to the problems with direct comparison of the obtained discrete measurement results for different angles of the fiber winding, a transition from the measured discrete signals to the continuous description was proposed. Using this approach, it was possible to include control systems, identification theory and finally metric spaces in the research methodology. The latter made it possible to determine the relations between compressive forces for the various examined poles and their coats, and further, to define the partial order in the space of the poles studied and their coverings. The obtained results indicated the wide possibilities of the proposed test methods for compressive forces in composite-concrete pillars and their glass-fiber reinforced coats.
ISSN:0263-2241
1873-412X
DOI:10.1016/j.measurement.2019.04.056