|
| Simulated Analysis of Impact Damage of Typical ReinforcedComposite Panels by Drop Hammer/Hail |
| |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2022.09.007 |
| KeyWord:composite materials drop hammer impact hail discrete source impact damage to introduce impact resistance |
| Author | Institution |
| HAN Si-cong |
Avic the First Aircraft Institute, Xi'an , China |
| HOU Rui |
Avic the First Aircraft Institute, Xi'an , China |
| REN Shan |
Avic the First Aircraft Institute, Xi'an , China |
| ZHAO Chen |
Avic the First Aircraft Institute, Xi'an , China |
| ZHANG Rui-chen |
AVIC Xi'an Aircraft Industry Group Company Ltd., Xi'an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The paper intends to study the impact damage characteristics of composite laminates with drop hammer and hail discrete source. The rigid body model and elastic-plastic model are used to construct the constitutive models of drop hammer and hail respectively. For stiffened plate, the B-K failure criterion based on cohesive interface elements is used to numerically simulate the composite interlaminar delamination damage. The numerical method is compared and verified by studying the response and damage propagation characteristics of multi-material punch with different impact energies and impact angles, and comparing the impact test data of composite laminate drop hammer impact and hail discrete source impact. The simulation analysis results show that under the impact of the energy cutoff value of drop hammer and hail in the same part of the body, the damage response of low-speed impact of drop hammer is greater than that of hail discrete source impact. At the same time, as the hail impact energy becomes greater, the closer the impact angle is to 90 degrees, the greater the damage response. The prediction of damage response and extension of the simulation method for the impact of drop hammer and hail are close to the experimental results, which can provide a basis for the study of impact damage introduction and impact resistance of composite materials. |
| Close |
|
|
|