Temperature Effects on Rubber Fatigue and Crack Growth
Author Information
Author(s): Li Runze, Lian Zisheng, Wei Wensheng, Nah Changwoon, Zaïri Fahmi
Primary Institution: College of Mechanical Engineering, Taiyuan University of Technology, Taiyuan, China
Hypothesis
How does operating temperature influence the crack growth characteristics and fatigue life of carbon black-filled hydrogenated nitrile butadiene rubber?
Conclusion
The study found that higher operating temperatures accelerate crack growth rates and reduce the fatigue life of rubber.
Supporting Evidence
- The study established a unified fatigue crack growth kinetic model at multiple temperatures.
- Results indicated a correlation between crack propagation characteristics and fatigue life predictions across different operating temperatures.
- The models can minimize the need for extensive product testing prior to the manufacture of rubber products.
Takeaway
When rubber gets hotter, it can crack more easily and wear out faster, which is important for making things like tires.
Methodology
Mechanical property tests and crack propagation tests were conducted at four different operating temperatures.
Limitations
The study did not consider the effect of carbon black content and did not address life prediction under multiaxial loading conditions.
Digital Object Identifier (DOI)
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