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Elastomeric seal stress analysis using photoelastic experimental hybrid method.
Bruno R Mose1, Dong-Kil Shin2, Bernard O Alunda3
1School of Mechanical, Manufacturing and Materials Engineering, Jomo Kenyatta University of Agriculture And Technology, Juja, Kenya.
Scientific Reports
|November 21, 2022
Summary
A new 5-hour stress freezing cycle reduces energy costs and processing time for photoelastic stress analysis. This economical method effectively analyzes stress in elastomeric seals without compromising fringe quality.
Area of Science:
- Experimental mechanics
- Materials science
- Solid mechanics
Background:
- Stress freezing is a key photoelasticity technique for 3D stress analysis.
- Its use has declined due to high energy costs and long processing times.
- Existing methods require significant time to interpret isoclinic and isochromatic fringes.
Purpose of the Study:
- To develop a cost-effective and time-efficient stress freezing technique.
- To reduce energy consumption in experimental stress analysis.
- To assess the suitability of a new rapid stress freezing cycle for engineering applications.
Main Methods:
- A novel 5-hour stress freezing cycle was developed and implemented.
- The technique was applied to elastomeric seals with varying cross-sections.
- Stress analysis was performed using isochromatic fringe data primarily.
Main Results:
- The reduced cycle time resulted in substantial energy savings.
- Fringe quality was maintained despite the shortened duration.
- Utilizing only isochromatic data expedited stress component extraction.
Conclusions:
- The proposed 5-hour stress freezing cycle offers an economical alternative.
- This method enhances the practicality of photoelasticity for engineering stress analysis.
- The technique is suitable for analyzing stress in elastomeric seals of diverse geometries.
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