| About this Abstract |
| Meeting |
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Symposium
|
2024 ASC Technical Conference, US-Japan Joint Symposium, D30 Meeting
|
| Presentation Title |
Damage Mechanisms in Chopped Strand Mat and Woven Roving Mat Composites Subjected to Tension-Tension, Compression-Compression and Tension-Compression Cyclic Loads |
| Author(s) |
Mritunjay Hiremath, Timo Bernthaler, Pascal Anger, Sushil Mishra, Anirban Guha, Asim Tewari |
| On-Site Speaker (Planned) |
Mritunjay Hiremath |
| Abstract Scope |
The present work focuses on comparing the damage mechanisms within the broader realm of Glass Fiber Reinforced Polymer composites when subjected to tension-tension fatigue loading. Chopped Strand Mat (CSM) and Woven Roving Mat (WRM) composites were tested at room temperature with a stress ratio of R = 0.5. The Scanning Electron Microscopy analysis of edge sections revealed the formation of perpendicular microcracks in both composites. Notably, in the case of CSM composite, a key novel observation was the development of fatigue cracks parallel to the direction of loading. Finite Elements analysis of a single fiber Representative Volume Element revealed that fibers perpendicular to the loading direction are the most likely to form interface cracks. The analysis also highlighted the role of shear stress in the matrix in initiating parallel cracks in CSM composite. These findings highlight the distinct damage mechanisms arising from the differing fiber arrangements in CSM and WRM composites, providing valuable insights for optimizing their performance under cyclic loading conditions. |
| Proceedings Inclusion? |
Definite: Post-meeting proceedings |