A Digital Image Correlation Technique for Laboratory Structural Tests and Applications: A Systematic Literature...

Area of Science:

• Structural Engineering
• Materials Science
• Optical Metrology

Background:

• Digital Image Correlation (DIC) is a vital optical technique for measuring surface displacements and strains.
• Its application in structural examination and monitoring is well-established.
• This review focuses on laboratory-based structural tests.

Purpose of the Study:

• To comprehensively review contemporary research and applications of DIC in laboratory-based structural tests.
• To evaluate the efficacy and constraints of DIC for structural component analysis.
• To underscore the benefits of DIC as a strain measurement instrument.

Main Methods:

• Literature review of laboratory-based structural tests utilizing DIC.
• Analysis of studies covering diverse structural components (concrete, steel, masonry, composites).
• Evaluation of DIC's performance in quantifying surface deformation and strain.

Main Results:

• DIC effectively quantifies surface deformation and strain in various structural elements like beams, columns, and walls.
• The technique demonstrates high precision and full-field measurement capabilities.
• Constraints were identified, particularly in complex or large-scale test setups.

Conclusions:

• DIC is a validated and effective strain measurement methodology for structural testing.
• Its benefits include non-invasive operation, high precision, and real-time monitoring.
• DIC shows compatibility for integration with other measurement systems, enhancing structural analysis.