Abstract
Most fiber optic sensors are point sensors that can measure the strain only at a local point of a beam, although strain distribution is non-uniform along the length of a beam. Long gage fiber optic sensors that measure integrated strain over a relatively long length can consider strain variation. This type of sensor was found to be efficient and useful for monitoring large-scale structures. On the other hand, the maximum strain in a beam cannot be measured with long gage optic sensors; the safety of a steel beam is analyzed by a comparison between the maximum stress measured during monitoring and the allowable stress of the beam calculated by a design code. Therefore, in this paper, simple mathematical models are presented for the determination of the maximum values of strains or stresses in a beam based on the average strains measured by long gage optic sensors. The model was tested in an experiment by comparing the maximum strain directly obtained from electrical gages and the calculated maximum strain from long gage optic sensors.
| Original language | English |
|---|---|
| Pages (from-to) | 109-113 |
| Number of pages | 5 |
| Journal | Sensors and Actuators, A: Physical |
| Volume | 125 |
| Issue number | 2 |
| DOIs | |
| Publication status | Published - 2006 Jan 10 |
Fingerprint
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Instrumentation
- Condensed Matter Physics
- Surfaces, Coatings and Films
- Metals and Alloys
- Electrical and Electronic Engineering
Cite this
}
Mathematical models for assessment of the safety of steel beams based on average strains from long gage optic sensors. / Park, Hyo Seon; Jung, Hyun Seok; Kwon, Yun Han; Seo, Ji Hyun.
In: Sensors and Actuators, A: Physical, Vol. 125, No. 2, 10.01.2006, p. 109-113.Research output: Contribution to journal › Article
TY - JOUR
T1 - Mathematical models for assessment of the safety of steel beams based on average strains from long gage optic sensors
AU - Park, Hyo Seon
AU - Jung, Hyun Seok
AU - Kwon, Yun Han
AU - Seo, Ji Hyun
PY - 2006/1/10
Y1 - 2006/1/10
N2 - Most fiber optic sensors are point sensors that can measure the strain only at a local point of a beam, although strain distribution is non-uniform along the length of a beam. Long gage fiber optic sensors that measure integrated strain over a relatively long length can consider strain variation. This type of sensor was found to be efficient and useful for monitoring large-scale structures. On the other hand, the maximum strain in a beam cannot be measured with long gage optic sensors; the safety of a steel beam is analyzed by a comparison between the maximum stress measured during monitoring and the allowable stress of the beam calculated by a design code. Therefore, in this paper, simple mathematical models are presented for the determination of the maximum values of strains or stresses in a beam based on the average strains measured by long gage optic sensors. The model was tested in an experiment by comparing the maximum strain directly obtained from electrical gages and the calculated maximum strain from long gage optic sensors.
AB - Most fiber optic sensors are point sensors that can measure the strain only at a local point of a beam, although strain distribution is non-uniform along the length of a beam. Long gage fiber optic sensors that measure integrated strain over a relatively long length can consider strain variation. This type of sensor was found to be efficient and useful for monitoring large-scale structures. On the other hand, the maximum strain in a beam cannot be measured with long gage optic sensors; the safety of a steel beam is analyzed by a comparison between the maximum stress measured during monitoring and the allowable stress of the beam calculated by a design code. Therefore, in this paper, simple mathematical models are presented for the determination of the maximum values of strains or stresses in a beam based on the average strains measured by long gage optic sensors. The model was tested in an experiment by comparing the maximum strain directly obtained from electrical gages and the calculated maximum strain from long gage optic sensors.
UR - http://www.scopus.com/inward/record.url?scp=29144492853&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=29144492853&partnerID=8YFLogxK
U2 - 10.1016/j.sna.2005.04.038
DO - 10.1016/j.sna.2005.04.038
M3 - Article
VL - 125
SP - 109
EP - 113
JO - Sensors and Actuators, A: Physical
JF - Sensors and Actuators, A: Physical
SN - 0924-4247
IS - 2
ER -