|
| Effect of Hygrothermal Treatment on Fatigue Property of Cracked Aluminum Plate Repaired by Bonding Composite Patch |
| Received:April 09, 2021 Revised:May 06, 2021 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2021.08.016 |
| KeyWord:hygrothermal treatment adhesively bonded composite repair crack growth couple agent fatigue property growth rate |
| Author | Institution |
| DAI Jing-tao |
Department of Aeronautical and Mechanical Engineering, Qingdao Campus of Naval Aeronautical University, Qinddao , China |
| SU Hong-bo |
Department of Aeronautical and Mechanical Engineering, Qingdao Campus of Naval Aeronautical University, Qinddao , China |
| TAN Xiao-ming |
Department of Aeronautical and Mechanical Engineering, Qingdao Campus of Naval Aeronautical University, Qinddao , China |
| WANG Yu-bo |
Department of Aeronautical and Mechanical Engineering, Qingdao Campus of Naval Aeronautical University, Qinddao , China |
| ZHAO Pei-zhong |
Department of Aeronautical and Mechanical Engineering, Qingdao Campus of Naval Aeronautical University, Qinddao , China |
|
| Hits: |
| Download times: |
| Abstract: |
| In order to investigate the effect of hygrothermal treatment on the fatigue property composite bonded repair structures, a series of samples were prepared according to applications of defferent coupling agents (KH550 and AC130). The composite repaired samples were treated for 72 h in the environment test chamber under the condition of 55 ℃ and 98% humidity. The fatigue life and crack growth were investigated before and after the hygrothermal treatment. According to the test data, the fatigue life of the cracked aluminum plate was increased obviously after composite bonded repair. For sample repaired with KH550, the fatigue life became 4.3 times of the unrepaired one. For sample repaired with AC130, it was 5.2 times. The fatigue life became 3.8 and 4.6 times of the unrepaired ones, respectively for the KH550 and AC130 sample. The hygrothermal treatment can lead to obvious decease of the fatigue property. Application of AC130 agent can result in better fatigue property compared with KH550 agent. Also, after hygrothermal treatment, the fatigue life of sample using AC130 agent decreased less, and the crack growth rate was lower, too. |
| Close |
|
|
|