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Research on Crack Stop Characteristics of Integrally Stiffened Structure for Spacecraft Pressured Modules

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Abstract

Large cracks may occur in the pressured module under the impacts of micro-meteors and space debris during orbit, which may cause rapid instable extension of cracks under the internal pressure load. To reduce the risk, the design criterion of crack stop is put forward, and the mechanism of fracture extension, simulation analysis and test verification method are studied. At the same time, the critical crack length and the influence of different parameters on it are obtained by the analysis and test of a typical integrally stiffened structure. It is proved that the structure design of the integrally stiffened structure for a spacecraft has a good crack stop performance.

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Acknowledgement

The authors would like to thank the company Beijing Institute of Spacecraft System Engineering (ISSE) for the supporting on the research. Meanwhile We are grateful to the editor and anonymous reviewers for their constructive.

Funding

The paper has not disclosed any funding.

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Authors and Affiliations

  1. Beijing Institute of Spacecraft System Engineering, Beijing, 100094, China

    Wenjing Shi, Liming Shi & Lin Zhang

Authors
  1. Wenjing Shi
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  2. Liming Shi
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  3. Lin Zhang
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Contributions

Shi Wenjing put forward the design criterion of crack stop and designed the experiment. Shi Liming is responsible for the mechanism of fracture extension and the simulation analysis. Zhang Lin performed the experiments. All Authors read and approved the manuscript.

Corresponding author

Correspondence to Wenjing Shi.

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The authors declare that they have no conflict of Interest.

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This article does not contain any studies with human participants performed by any of the authors.

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Cite this article

Shi, W., Shi, L. & Zhang, L. Research on Crack Stop Characteristics of Integrally Stiffened Structure for Spacecraft Pressured Modules. Adv. Astronaut. Sci. Technol. 5, 219–225 (2022). https://doi.org/10.1007/s42423-022-00116-6

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  • DOI: https://doi.org/10.1007/s42423-022-00116-6

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