Effect of Trigger and Stacking Structures on Energy Absorption of Carbon Fiber/Epoxy Tubes Under Axial Compression
Carbon fiber(CF) as reinforcement and epoxy as matrix are employed to manufacture CF/epoxy composite tubes with unidirectional and 0°/90° stacking structures through wrapping and heat press curing processes. The energy absorption of those composite tubes with different triggers is investigated throu...
Saved in:
| Main Author: | |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Editorial Department of Journal of Nantong University (Natural Science Edition)
2020-12-01
|
| Series: | Nantong Daxue xuebao. Ziran kexue ban |
| Subjects: | |
| Online Access: | https://ngzke.cbpt.cnki.net/portal/journal/portal/client/paper/d65dd45179bff20dbf41f6cfbd9e5e51 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| Summary: | Carbon fiber(CF) as reinforcement and epoxy as matrix are employed to manufacture CF/epoxy composite tubes with unidirectional and 0°/90° stacking structures through wrapping and heat press curing processes. The energy absorption of those composite tubes with different triggers is investigated through the axial compression tests. The effects of trigger and stacking structures on the crashworthiness of composite tubes are discussed. Meanwhile, the failure behavior is analyzed by optical observations on the micro damage propagation in cross section. The findings are that0°/90° wrapping composites tubes with 90° oriented hoop fibers exhibit better energy absorption capability than that of unidirectional composite tubes with same trigger. The initial crushing behavior is affected by the trigger, which plays a significant role in the following progressive and stable crushing process. During the crushing process, more delamination and fiber breakage occur in fronds with smaller bending curvature that facilitate the energy absorption of composite tubes. |
|---|---|
| ISSN: | 1673-2340 |