This application falls under the Materials Science and Engineering Industry, specifically targeting dynamic material testing in sectors like aerospace, automotive, defense, and advanced manufacturing, where understanding material behavior under high-speed impact is critical.

• High-speed camera observation of Hopkinson bar impact tests is essential for analyzing material dynamic properties, but significant challenges exist in achieving accurate, reliable results. These include:

  
  

• Evaluating the dynamic properties of materials requires split Hopkinson bar devices to conduct impact tests on specimens, observing strain rate, strength under various impact speeds, and failure states to assess performance. However, capturing these rapid events - occurring in the microsecond to millisecond range - demands tools capable of extremely fast imaging to ensure precision.

  
  

• Traditional methods, such as strain gauges, are limited to measuring only local strain, lacking the ability to provide full-field strain distribution across a specimen’s surface, which is crucial for comprehensive material analysis.

  
  

• The need for non-invasive, high-resolution imaging to clearly capture crack initiation positions, propagation paths, and speeds is critical for analyzing material toughness, brittleness, or dynamic fracture toughness, but standard imaging tools often fail to meet these demands under such extreme conditions.