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A Test Bed to Examine Helmet Fit and Retention and Biomechanical Measures of Head and Neck Injury in Simulated Impact
Published on: September 21, 2017
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Impact resistance test system for the helmet based on a polyvinylidene fluoride piezoelectric sensor array
Qiyue Li1, Xiaomu Liao1, Xing Huang1
1School of Resources and Safety Engineering, Central South University, People's Republic of China.
International Journal of Occupational Safety and Ergonomics : JOSE
|January 13, 2022
Summary
This study developed a new helmet impact resistance test system using polyvinylidene fluoride (PVDF) sensors. This system accurately measures stress distribution, improving helmet safety evaluations and design optimization.
Area of Science:
- Materials Science
- Mechanical Engineering
- Biomedical Engineering
Background:
- Helmets are crucial personal protection equipment (PPE) in many industries.
- Assessing helmet impact resistance is vital for user safety.
- Conventional testing methods may lack comprehensive stress distribution data.
Purpose of the Study:
- To develop and validate a novel helmet impact resistance test system.
- To directly measure stress and its distribution on the headform during impact.
- To enhance the accuracy and comprehensiveness of helmet impact evaluations.
Main Methods:
- Construction of a helmet impact resistance test system utilizing a polyvinylidene fluoride (PVDF) sensor array.
- Integration of PVDF sensors onto the contact surface between the headform and the helmet.
- Direct measurement of stress and its spatial distribution during impact events.
Main Results:
- The PVDF sensor array system provides direct measurement of stress and distribution.
- The reliability of the test system was confirmed through intra-group correlation coefficient (ICC) and coefficient of variation (CV) calculations.
- The system demonstrated high reliability for repeated impact tests.
Conclusions:
- The developed PVDF sensor-based test system offers a more accurate and comprehensive evaluation of helmet impact resistance.
- This system facilitates the optimization of helmet design and supports further research in protective headgear.
- The findings contribute to improved safety standards for PPE in various production activities.
