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Numerical study on
the ForceMate bushing cold expansion of composite holes using
a novel assisting sleeve
Wuzhu Yan, Zhen Li, Shujing Liang, Yuchang Guo, Xifeng Chen, Xing Wang, Jun Liu, Xiaoliang Geng and Xu Long |
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Vol. 19 (2024), No. 5, 747–762
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Abstract |
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Cold expansion technology has been one of the most common anti-fatigue strengthening technologies for fastening holes. In this paper, a newly developed assisting sleeve is employed to install the ForceMate bushing, and the resulting deformation, rebound, drawing force, contact pressure, residual stress and damage are compared to those resulting from traditional ForceMate bushing process. The 3D Hashin failure criterion was implemented into finite element simulation via a specially written user subroutine to simulate the deformation and failure of cold expanded composite holes. The results show that a more uniform distribution of residual contact pressure and residual circumferential stress is achieved by introducing the assisting sleeve, and less damage around the composite hole is induced under the same interference level. In comparison with the traditional ForceMate bushing process, a better anti-fatigue performance of cold expanded composite holes can be expected by using the assisting sleeve. |
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Keywords
fiber reinforced composite, cold expansion, bushing,
composite holes, residual stress, finite element simulation
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Milestones
Received: 12 March 2024
Revised: 14 July 2024
Accepted: 28 August 2024
Published: 30 October 2024
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Authors |
| Wuzhu Yan | |
| Department of Engineering Mechanics,
School of Mechanics, Civil Engineering and Architecture Northwestern Polytechnical University Xi’an, 710129 China |
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| Zhen Li | |
| Department of Structure Design AVIC The First Aircraft Institute Xi’an, 710087 China |
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| Shujing Liang | |
| Aero Engine Technology Blade
Branch Aecc Aero Science and Technology Co., LTD Chengdu, 610041 China |
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| Yuchang Guo | |
| Department of Engineering Mechanics,
School of Mechanics, Civil Engineering and Architecture Northwestern Polytechnical University Xi’an, 710129 China |
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| Xifeng Chen | |
| Department of Structure Design AVIC The First Aircraft Institute Xi’an, 710087 China |
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| Xing Wang | |
| Innovation Research Institute of
Shenyang Aircraft Industry Group Co., LTD Shenyang, 110031 China |
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| Jun Liu | |
| Department of Engineering Mechanics,
School of Mechanics, Civil Engineering and Architecture Northwestern Polytechnical University Xi’an, 710129 China |
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| Xiaoliang Geng | |
| Department of Engineering Mechanics,
School of Mechanics, Civil Engineering and Architecture Northwestern Polytechnical University Xi’an, 710129 China |
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| Xu Long | |
| Department of Engineering Mechanics,
School of Mechanics, Civil Engineering and Architecture Northwestern Polytechnical University Xi’an, 710129 China |
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| © 2024 MSP (Mathematical Sciences Publishers). |
