Tufted sandwich panels have been shown to be effective energy absorbing structures when subjected to in-plane compressive loads, such as those exhibited during an automotive vehicle side impact. However, up to now, no focus has been paid to understanding the complex failure mechanisms that take place during this type of loading, in particular what happens to the individual tufts, both during and after failure. In this study, an experimental test procedure was used to observe the behaviour of tufts during edgewise crushing. Overall, the tufted samples showcased a prolonged and more stable failure than the untufted baseline. The test also showed a clear drifting and stacking motion of the tufts, as well as highlighting a number of secondary failure mechanisms that take place, that have not been documented before. Further understanding of how these occur could lead to better performance and controllability of the global failure of such a structure.
|Title of host publication||ECCM17 - 17th European Conference on Composite Materials|
|Subtitle of host publication||Munich, German, 26-30 June 2016|
|Publisher||European Conference on Composite Materials, ECCM|
|Number of pages||8|
|Publication status||Published - 30 Jun 2016|
|Event||17th European Conference on Composite Materials 2016 - Internationales Congress Center München, Munich, Germany|
Duration: 26 Jun 2016 → 30 Jun 2016
Conference number: 17
|Conference||17th European Conference on Composite Materials 2016|
|Period||26/06/16 → 30/06/16|
- 3-Dimensional Reinforcement
- Mechanical Testing
Hartley, J. W., Tse, G., Kratz, J., Ward, C., & Partridge, I. K. (2016). Column Interaction in Tufted Sandwich Structures Under Edgewise Loading. In ECCM17 - 17th European Conference on Composite Materials: Munich, German, 26-30 June 2016 European Conference on Composite Materials, ECCM.