Realisation of Wöhler curves on packaging systems

The Importance of Wöhler curves in packaging

The significance of Wöhler curves in the study of packaging systems is undeniable. These curves, crucial in understanding material behavior under fatigue, find a relevant application in the packaging industry, especially for assessing the durability of boxes under the influence of vibrations during transportation.

Basic principles of Wöhler curves

Wöhler curves illustrate the relationship between the amplitude of stresses applied to a material and the number of cycles required to cause failure. In the context of packaging systems, these curves enable the prediction of the lifespan of boxes under repeated vibrational stresses, a crucial aspect for ensuring the safety and integrity of transported products.

Experimental methodology

The study implemented a series of experiments to generate Wöhler curves for different types of packaging boxes. This methodology included applying controlled vibrational stresses to packaging samples while recording the number of cycles until material failure.

Results and analysis

The obtained results reveal significant variations in the durability of different types of tested boxes. Once analyzed, these data provide valuable insights into how material properties and box design influence their resistance to vibrational fatigue.

Impact of the Basquin coefficient

The Basquin coefficient, a key parameter in predicting the fatigue life of materials, was examined. The study demonstrates how this coefficient can be used to refine predictions of packaging system durability, thus offering a better understanding of their behavior under real conditions.

Comparison between single-frequency stresses and white noise

Comparing the effects of single-frequency stresses and white noise on packaging revealed notable differences. While single-frequency stresses simulate vibrations at a constant frequency, white noise represents a broader spectrum of frequencies, more faithfully reflecting real transportation conditions.

Conclusion

This study makes a significant contribution to understanding the behavior of packaging systems under the influence of vibrations. The findings not only improve packaging design but also optimize their performance, ensuring better product protection during transportation.