Step 1: Specimen Preparation
Cut bolts to standardized dimensions, ensuring no surface defects. Secure the specimen in the testing machine’s grips, aligning it to avoid off-axis loading.
Step 2: Real-Time Deformation Tracking
The video Extensometer, a non-contact optical tool, captures high-resolution images of the bolt’s gauge section. It measures elongation and strain in real time, eliminating errors from physical contact with fragile or small specimens.
Step 3: Controlled Loading
The universal Tester applies gradual tensile/compressive force up to failure. Software records load vs. displacement curves, while the video extensometer provides precise strain data—key for calculating yield strength, ultimate tensile strength (UTS), and modulus of elasticity.
Why This Works
Video extensometers excel in micro-deformation measurement, ideal for high-strength bolts where even minor errors impact performance. Combined with the tester’s stable load application, this method meets ASTM/ISO standards, ensuring compliance and trust.
For critical applications, precision matters. Trust HST Group to Test your bolts with cutting-edge technology—because strength isn’t just a number; it’s safety.
[Contact us for tailored Testing solutions.]
