Force Measurement with a Strain Gauge Subjected to Pure Bending in the Fluid–Wall Interaction of Open Water Channels

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dc.contributor.authorSantana, Luis
dc.contributor.authorRivera Salazar, Diego
dc.contributor.authorForcael, Eric
dc.date.accessioned2023-04-06T17:11:00Z
dc.date.available2023-04-06T17:11:00Z
dc.date.issued2022
dc.description.abstractAn experimental method to measure forces of small magnitude with a strain gauge as a force sensor in the fluid–wall interaction of open water channels is presented. Six uniaxial strain gauges were employed for this purpose, which were embedded across the entire sensing area and subjected to pure bending, employing two-point bending tests. Sixteen two-point bending tests were performed to determine the existence of a direct relationship between the load and the instrument signal. Furthermore, a regression analysis was used to estimate the parameters of the model. A data acquisition system was developed to register the behavior of the strain gauge relative to the lateral displacement induced by the loading nose of the universal testing machine. The results showed a significant linear relationship between the load and the instrumental signal, provided that the strain gauge was embedded between 30% and 45% of the central axis in the sensing area of the sensor (R2 > 0.99). Thus, the proposed sensor can be employed to measure forces of small magnitude. Additionally, the linear relationship between the load and the instrumental signal can be used as a calibration equation, provided that the strain gauge is embedded close to the central axis of the sensing area.
dc.description.versionVersión publicada
dc.format.extent17 p.
dc.identifier.citationSantana, L.; Rivera, D.; Forcael, E. Force Measurement with a Strain Gauge Subjected to Pure Bending in the Fluid–Wall Interaction of Open Water Channels. Appl. Sci. 2022, 12, 1744. https://doi.org/ 10.3390/app12031744
dc.identifier.doihttps://doi.org/10.3390/app12031744
dc.identifier.urihttps://repositorio.udd.cl/handle/11447/7273
dc.language.isoen
dc.subjectSmall force
dc.subjectLoad
dc.subjectInstrumental signal
dc.subjectTwo-point bending test
dc.subjectStrain gauge
dc.subjectCalibra- tion equation
dc.titleForce Measurement with a Strain Gauge Subjected to Pure Bending in the Fluid–Wall Interaction of Open Water Channels
dc.typeArticle
dcterms.accessRightsAcceso abierto
dcterms.sourceApplied Sciences

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