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Fatigue Life Analysis of Folding Hinges
1. Introduction
Folding hinges are widely used in various industries, especially in the field of furniture manufacturing. However, the fatigue failure of folding hinges has become a common problem, which seriously affects the service life and safety of products. Therefore, it is necessary to conduct a fatigue life analysis of folding hinges to improve their reliability and durability.
2. Experimental Method
2.1 Sample Preparation: A total of 50 folding hinges were selected for the experiment, and each hinge was subjected to a load of 50N for 100,000 cycles.
2.2 Data Collection: The fatigue life of each hinge was recorded, and the failure mechanism was analyzed by observing the fracture surface and microstructure of the hinge.
Failure Mechanism Analysis of Folding Hinges
3. Results
3.1 Fatigue Life Distribution: The fatigue life of the folding hinges followed a Weibull distribution, and the mean fatigue life was 80,000 cycles.
3.2 Failure Mechanism: The folding hinges mainly failed due to crack initiation and propagation at the root of the hinge. The crack was caused by the high stress concentration at the root of the hinge during the folding and unfolding process.
Conclusion
4. Discussion
4.1 Improvement Measures: To improve the fatigue life of folding hinges, the following measures can be taken: (1) optimizing the design of the hinge to reduce stress concentration; (2) using high-strength materials with good fatigue resistance; (3) improving the manufacturing process to reduce defects and improve the quality of the hinge.
4.2 Significance: The fatigue life analysis of folding hinges can provide a scientific basis for the design, manufacturing, and quality control of folding hinges, and promote the development of related industries.