scholarly journals Application of Optical Measurement Technology in the Maintenance of Infrastructure^|^mdash;Full-field Strain Measurement by DICM and Vibration Measurement by LDV^|^mdash;

2012 ◽  
Vol 50 (9) ◽  
pp. 873-878
Author(s):  
H. Matsuda ◽  
Y. Ito ◽  
A. Demizu ◽  
K. Makino
Keyword(s):  
Strain Measurement ◽  
Optical Measurement ◽  
Field Strain ◽  
Vibration Measurement ◽  
Measurement Technology ◽  
Full Field

scholarly journals A Review of Surface Deformation and Strain Measurement Using Two-Dimensional Digital Image Correlation

2016 ◽  
Vol 23 (3) ◽  
pp. 461-480 ◽  
Author(s):  
Sze-Wei Khoo ◽  
Saravanan Karuppanan ◽  
Ching-Seong Tan
Keyword(s):  
Digital Image Correlation ◽  
Digital Image ◽  
Strain Measurement ◽  
Surface Deformation ◽  
Optical Measurement ◽  
Image Correlation ◽  
Two Dimensional ◽  
Full Field ◽  
Computation Efficiency ◽  
Dimensional Measurements

Abstract Among the full-field optical measurement methods, the Digital Image Correlation (DIC) is one of the techniques which has been given particular attention. Technically, the DIC technique refers to a non-contact strain measurement method that mathematically compares the grey intensity changes of the images captured at two different states: before and after deformation. The measurement can be performed by numerically calculating the displacement of speckles which are deposited on the top of object’s surface. In this paper, the Two-Dimensional Digital Image Correlation (2D-DIC) is presented and its fundamental concepts are discussed. Next, the development of the 2D-DIC algorithms in the past 33 years is reviewed systematically. The improvement of 2DDIC algorithms is presented with respect to two distinct aspects: their computation efficiency and measurement accuracy. Furthermore, analysis of the 2D-DIC accuracy is included, followed by a review of the DIC applications for two-dimensional measurements.

scholarly journals Vision-based Deformation Measurement for Pile-soil Testing

2019 ◽  
Vol 275 ◽  
pp. 03009
Author(s):  
Kun Zhou ◽  
Linhua Chen ◽  
Shanshan Yu
Keyword(s):  
Measurement Method ◽  
Optical Measurement ◽  
High Sensitivity ◽  
Steel Tube ◽  
Image Features ◽  
Deformation Measurement ◽  
Measurement Technology ◽  
Full Field ◽  
Progressive Development ◽  
Point Tracking

Image measurement technology has been widely used in monitoring the deformation of the soil field around the pile with its advantages of no damage, no contact, full-field measurement, no added quality and high sensitivity. But there are few researches on image-based bearing deformation measurement of the pile. Through an indoor pile-soil semi-model test, the rigid body displacement and load-bearing deformation of a new type of prefabricated steel tube pile foundation under horizontal load was measured based on image features. In this study, the concept of optical extensometer is first applied to the measurement of local average strain of a non-uniform deformed structure. Based on an improved feature point tracking algorithm SURF-BRISK, non-contact measurement of tiny strain of pile body is realized. In addition, based on DIC technology, this study also obtained the progressive development of displacement field of soil around pile. The above work fully reflects the non-contact convenience and full-field richness of the optical measurement method compared with the traditional measurement method.

Load and Boundary Condition Calibration Using Full-field Strain Measurement

2006 ◽  
Vol 46 (5) ◽  
pp. 569-578 ◽  
Author(s):  
S. Padmanabhan ◽  
J. P. Hubner ◽  
A. V. Kumar ◽  
P. G. Ifju
Keyword(s):  
Boundary Condition ◽  
Strain Measurement ◽  
Field Strain ◽  
Full Field

Full-field strain measurement and fracture analysis of rat femora in compression test

2013 ◽  
Vol 46 (7) ◽  
pp. 1282-1292 ◽  
Author(s):  
Saber Amin Yavari ◽  
Johan van der Stok ◽  
Harrie Weinans ◽  
Amir Abbas Zadpoor
Keyword(s):  
Compression Test ◽  
Strain Measurement ◽  
Fracture Analysis ◽  
Field Strain ◽  
Full Field

A Challenge for High-Performance Full-Field Strain Measurement Systems

Strain ◽  
2007 ◽  
Vol 43 (3) ◽  
pp. 167-180 ◽  
Author(s):  
E. Patterson ◽  
P. Brailly ◽  
R. Burguete ◽  
E. Hack ◽  
T. Siebert ◽  
...  
Keyword(s):  
Strain Measurement ◽  
High Performance ◽  
Field Strain ◽  
Full Field ◽  
Measurement Systems

An in-situ self-calibration method for non-contact full-field strain measurement

Measurement ◽  
2020 ◽  
Vol 162 ◽  
pp. 107871
Author(s):  
Huaxia Deng ◽  
Jun Wang ◽  
Haicong Zhang ◽  
Jin Zhang ◽  
Mengchao Ma ◽  
...  
Keyword(s):  
Strain Measurement ◽  
Calibration Method ◽  
Field Strain ◽  
Full Field ◽  
Self Calibration
Sign in / Sign up

Export Citation Format

Share Document