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Blast Quantification Using Hopkinson Pressure Bars
Published on: July 5, 2016
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Design and development of a novel strain gauge automatic pasting device for mini split Hopkinson pressure bar
Wenkai Huang1, Shi Huan2, Junfeng He1
1School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou 510006, People's Republic of China.
The Review of Scientific Instruments
|April 2, 2018
Summary
An automated device ensures accurate strain gauge application for split Hopkinson pressure bar (SHPB) experiments. This novel method improves reliability and consistency in high-speed material testing.
Area of Science:
- Mechanical Engineering
- Materials Science
- Experimental Physics
Background:
- Strain gauge application accuracy is critical for split Hopkinson pressure bar (SHPB) experiments.
- Manual strain gauge pasting is prone to human error, affecting measurement reliability.
- Inconsistent application can lead to significant deviations in experimental results.
Purpose of the Study:
- To design and develop a novel automatic pasting device for strain gauges.
- To enhance the accuracy and speed of strain gauge application in SHPB experiments.
- To ensure reliable and consistent measurement results in dynamic material testing.
Main Methods:
- Development of a novel automatic strain gauge pasting device.
- Testing the device's performance in applying strain gauges for SHPB experiments.
- Optimization of clamping force for successful adhesion and positioning.
Main Results:
- The automatic pasting device accurately and rapidly applies strain gauges.
- A clamping force of 74 N resulted in a 97% success rate for strain gauge application.
- The device ensures reliable paste quality and consistent SHPB experimental measurements.
Conclusions:
- The developed automatic pasting device significantly improves strain gauge application for SHPB tests.
- This automation reduces human error and enhances the consistency of dynamic material testing.
- The device offers a reliable solution for accurate strain gauge placement, crucial for high-fidelity measurements.
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