​Revealer High-Speed Cameras, DIC Measurement Systems, and Other Scientific Instruments Shine at the 15th National Academic Conference on Explosion Mechanics Original by Revealer

The 15th National Academic Conference on Explosion Mechanics was grandly held in Shaoxing on June 28, bringing together over 2,000 experts and scholars in the fields of explosion mechanics and impact dynamics from across the country. The conference focused on key topics such as:

- "Engineering Applications of Explosion and Impact Dynamics"

- "Dynamic Mechanical Behavior and Damage Fracture of Materials"

- "Engineering Blasting and Damage Assessment"

- "Energetic Materials and Underwater Explosions"

- "Structural Dynamic Response and Safety Protection"

Revealer Scientific Instruments showcased its self-developed high-speed cameras, Digital Image Correlation (DIC) measurement systems, and the jointly developed high-speed visible light thermometry system, presenting classic applications in the field of explosion mechanics to attending experts.

Application 1 – Underwater Explosion and Transient Shock Phenomena

Underwater explosions are typically accompanied by violent cavitation, bubble collapse, and high-speed shockwave propagation. Using Revealer high-speed cameras equipped with waterproof sealed housings, the entire lifecycle of explosion bubbles—formation, expansion, and collapse—can be clearly recorded. Quantitative analysis of key image sequences enables extraction of bubble size, shape change rates, and hydrodynamic parameters, providing data support for predictive modeling of underwater explosion effects.

Application 2 – Engineering Blasting

Shockwaves from engineering blasts propagate rapidly, and ground-level perspectives are often limited, making traditional high-speed ground filming inadequate for capturing macroscopic dynamics. Revealer’s drone-mounted high-speed cameras establish hundreds-of-meters aerial observation angles, fully documenting shockwave propagation paths, dust diffusion patterns, and ground vibration effects. Combined with contour measurement modules in image analysis software, they accurately measure shockwave speeds and disturbance levels to surrounding media, offering high spatiotemporal-resolution visual data for blast safety assessments.

Application 3 – Real-Time Fragment Tracking and Quasi-Real-Time Trajectory Measurement

Explosions generate numerous high-speed fragments with complex trajectories, posing challenges for real-time positioning and motion analysis. Revealer’s high-speed cameras integrated with image analysis systems enable real-time fragment capture and localization (spatial coordinates, latitude/longitude, burst height) and support quasi-real-time output of velocity parameters, assessing target damage effects and providing critical data for protective engineering design.

Application 4 – Material Strain and Deflection Under Impact Loads

Structural responses to impact loads are instantaneous and nonlinear, often involving local stress concentration and large deformations. Revealer’s high-speed 3D-DIC system, powered by dual cameras, captures transient processes like drop-hammer impacts on steel pipes. DIC software analyzes local stress concentration zones and maximum deflection values under normal temperature and low temperature conditions, dynamically outputting full-field strain cloud maps and deflection-time curves to quantify material responses under impact.

Application 5 – Dynamic Crack Propagation

Crack expansion under dynamic loads is fast and path-complex. Revealer’s R&D team developed a DIC-based temporal crack algorithm, employing sparse optical flow for crack vector tracking and the Hungarian algorithm for temporal feature-point correlation. This precisely extracts crack endpoints and calculates crack-opening angle curves, achieving subpixel-level crack tracking and providing a characterization tool for dynamic fracture mechanics.

Conclusion

From microscopic transients to macroscopic damage, underwater explosions to aerial panoramas, and engineering protection to material cracks, high-speed imaging and DIC non-contact measurement technologies are expanding the boundaries of explosion mechanics research. Revealer remains committed to delivering cutting-edge, user-friendly scientific instruments with extreme parameter performance, empowering researchers to explore higher spatiotemporal-precision explosion testing systems.

Revealer – Illuminating the Invisible Frontiers of Science.