Materials Mechanics
Monocular 3D Video Extensometer
Compression-shear loading tends to induce shear bands and local instability, and traditional methods struggle to capture the shear path. The Haytham system outputs the development of the strain field in the shear region, supporting yield mechanism and failure mode identification.
Through Haytham DIC, full-field strain changes during rock core compression are captured precisely, monitoring crack propagation and stress concentration points in real time.
Deformation monitoring of the airport link high-speed rail pier section is key to bridge safety. With high-precision devices such as the Flexible Vision Tracker, displacement, tilt and deformation are monitored in real time without touching the piers. Using IoT and intelligent disaster identification algorithms, captured image data is rapidly converted into precise deformation data, ensuring efficient, reliable monitoring.
During station construction, the tracker monitors the assembly status of each block, ensuring accurate installation and design shape. After operation begins, the system continues tracking structural deformation — especially under long-term metro train loads — evaluating overall station stability in real time. Through precise analysis of deformation data, potential issues are detected early for timely maintenance, ensuring long-term safe operation.
With advanced image processing, sensor and IoT technologies, tunnel deformation monitoring achieves all-weather, automated data acquisition and processing. Edge computing reduces transmission load and improves real-time performance, while the cloud platform allows remote viewing of monitoring data, letting managers keep track of tunnel health at any time.
Haytham DIC was applied to fatigue crack propagation testing of bone cement CT specimens. Under repeated loading, DIC tracked surface strain changes during loading through continuous imaging, especially the concentrated strain at crack tips.
In this experiment, Haytham DIC was used for full-field strain measurement of bovine bone samples under compressive load. Traditional point measurement struggles to show the complex strain distribution on the bone surface, while DIC obtains the complete strain field during loading by comparing continuously captured images.
Using the Online Vision Tracker based on oblique optical-axis DIC technology, long-term displacement and deformation monitoring of tunnel structures is performed. The system monitors key structural points around the clock through multiple measuring heads, acquiring and analyzing displacement and vibration data in real time.
Explore this overpass safety monitoring case to learn about real-time pier settlement monitoring and data accuracy.