Non-contact strain measurement for laterally loaded steel plate using LiDAR point cloud displacement data

Hyeon Cheol Jo, Junhwi Kim, Kangwon Lee, Hong Gyoo Sohn, Yun Mook Lim

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Strain measurement in structures provides key information for structural health monitoring (SHM); therefore, researchers have developed various sensing methods for measuring strain in structures. Recently, light detection and ranging (LiDAR) has been studied as a non-contact strain measurement method (NCSMM). LiDAR is a technology for remotely acquiring high precision three-dimensional (3D) coordinate information for a terrain or a structure using a 3D laser scanning system. In recent years, LiDAR applications have expanded to include systems used to monitor structural behavior. Using this technology, structural behavior can be monitored without directly attaching sensors to the surfaces of target structures. It is advantageous to use non-contact 3D laser scanning measuring methods to obtain the 3D coordinates of a specific region or the shape of the target structures. LiDAR technology does not have some of the limitations associated with existing types of measuring sensors used for SHM. Therefore, in this study, we will present a method for estimating deformation and strains for a whole structure by measuring discretized 3D coordinate data of the target structure obtained from the LiDAR. The 3D coordinate data was revised using a regression analysis, and the strain was estimated by developing a finite element model based on the corrected 3D coordinate information. The experimental structural model is a steel plate, which is the primary material used for the outer wall construction of LNG storage tanks. The estimated strains will be compared to the measured values from real strain gauges, and the applicability of the proposed strain measurement method to structural behavior monitoring will be verified.

Original languageEnglish
Pages (from-to)362-374
Number of pages13
JournalSensors and Actuators, A: Physical
Volume283
DOIs
Publication statusPublished - 2018 Nov 1

Fingerprint

strain measurement
Strain measurement
Steel
steels
Structural health monitoring
structural health monitoring
Scanning
liquefied natural gas
Lasers
Sensors
storage tanks
Strain gages
Liquefied natural gas
scanning
Regression analysis
sensors
strain gages
lasers
regression analysis
estimating

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

@article{825a1798cb664b24b8737da802050aa9,
title = "Non-contact strain measurement for laterally loaded steel plate using LiDAR point cloud displacement data",
abstract = "Strain measurement in structures provides key information for structural health monitoring (SHM); therefore, researchers have developed various sensing methods for measuring strain in structures. Recently, light detection and ranging (LiDAR) has been studied as a non-contact strain measurement method (NCSMM). LiDAR is a technology for remotely acquiring high precision three-dimensional (3D) coordinate information for a terrain or a structure using a 3D laser scanning system. In recent years, LiDAR applications have expanded to include systems used to monitor structural behavior. Using this technology, structural behavior can be monitored without directly attaching sensors to the surfaces of target structures. It is advantageous to use non-contact 3D laser scanning measuring methods to obtain the 3D coordinates of a specific region or the shape of the target structures. LiDAR technology does not have some of the limitations associated with existing types of measuring sensors used for SHM. Therefore, in this study, we will present a method for estimating deformation and strains for a whole structure by measuring discretized 3D coordinate data of the target structure obtained from the LiDAR. The 3D coordinate data was revised using a regression analysis, and the strain was estimated by developing a finite element model based on the corrected 3D coordinate information. The experimental structural model is a steel plate, which is the primary material used for the outer wall construction of LNG storage tanks. The estimated strains will be compared to the measured values from real strain gauges, and the applicability of the proposed strain measurement method to structural behavior monitoring will be verified.",
author = "Jo, {Hyeon Cheol} and Junhwi Kim and Kangwon Lee and Sohn, {Hong Gyoo} and Lim, {Yun Mook}",
year = "2018",
month = "11",
day = "1",
doi = "10.1016/j.sna.2018.09.012",
language = "English",
volume = "283",
pages = "362--374",
journal = "Sensors and Actuators, A: Physical",
issn = "0924-4247",
publisher = "Elsevier",

}

Non-contact strain measurement for laterally loaded steel plate using LiDAR point cloud displacement data. / Jo, Hyeon Cheol; Kim, Junhwi; Lee, Kangwon; Sohn, Hong Gyoo; Lim, Yun Mook.

In: Sensors and Actuators, A: Physical, Vol. 283, 01.11.2018, p. 362-374.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Non-contact strain measurement for laterally loaded steel plate using LiDAR point cloud displacement data

AU - Jo, Hyeon Cheol

AU - Kim, Junhwi

AU - Lee, Kangwon

AU - Sohn, Hong Gyoo

AU - Lim, Yun Mook

PY - 2018/11/1

Y1 - 2018/11/1

N2 - Strain measurement in structures provides key information for structural health monitoring (SHM); therefore, researchers have developed various sensing methods for measuring strain in structures. Recently, light detection and ranging (LiDAR) has been studied as a non-contact strain measurement method (NCSMM). LiDAR is a technology for remotely acquiring high precision three-dimensional (3D) coordinate information for a terrain or a structure using a 3D laser scanning system. In recent years, LiDAR applications have expanded to include systems used to monitor structural behavior. Using this technology, structural behavior can be monitored without directly attaching sensors to the surfaces of target structures. It is advantageous to use non-contact 3D laser scanning measuring methods to obtain the 3D coordinates of a specific region or the shape of the target structures. LiDAR technology does not have some of the limitations associated with existing types of measuring sensors used for SHM. Therefore, in this study, we will present a method for estimating deformation and strains for a whole structure by measuring discretized 3D coordinate data of the target structure obtained from the LiDAR. The 3D coordinate data was revised using a regression analysis, and the strain was estimated by developing a finite element model based on the corrected 3D coordinate information. The experimental structural model is a steel plate, which is the primary material used for the outer wall construction of LNG storage tanks. The estimated strains will be compared to the measured values from real strain gauges, and the applicability of the proposed strain measurement method to structural behavior monitoring will be verified.

AB - Strain measurement in structures provides key information for structural health monitoring (SHM); therefore, researchers have developed various sensing methods for measuring strain in structures. Recently, light detection and ranging (LiDAR) has been studied as a non-contact strain measurement method (NCSMM). LiDAR is a technology for remotely acquiring high precision three-dimensional (3D) coordinate information for a terrain or a structure using a 3D laser scanning system. In recent years, LiDAR applications have expanded to include systems used to monitor structural behavior. Using this technology, structural behavior can be monitored without directly attaching sensors to the surfaces of target structures. It is advantageous to use non-contact 3D laser scanning measuring methods to obtain the 3D coordinates of a specific region or the shape of the target structures. LiDAR technology does not have some of the limitations associated with existing types of measuring sensors used for SHM. Therefore, in this study, we will present a method for estimating deformation and strains for a whole structure by measuring discretized 3D coordinate data of the target structure obtained from the LiDAR. The 3D coordinate data was revised using a regression analysis, and the strain was estimated by developing a finite element model based on the corrected 3D coordinate information. The experimental structural model is a steel plate, which is the primary material used for the outer wall construction of LNG storage tanks. The estimated strains will be compared to the measured values from real strain gauges, and the applicability of the proposed strain measurement method to structural behavior monitoring will be verified.

UR - http://www.scopus.com/inward/record.url?scp=85054794344&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85054794344&partnerID=8YFLogxK

U2 - 10.1016/j.sna.2018.09.012

DO - 10.1016/j.sna.2018.09.012

M3 - Article

AN - SCOPUS:85054794344

VL - 283

SP - 362

EP - 374

JO - Sensors and Actuators, A: Physical

JF - Sensors and Actuators, A: Physical

SN - 0924-4247

ER -