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Mechanical response model with core loss of microcapsules under uniaxial compression and its parameters analysis

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Abstract

Microcapsules are widely used in various fields. However, there is no way to predict the mechanical response of microcapsules accurately. To address this problem, the improved Reissner theory and the Tatara theory are employed to establish the mechanical response models of the capsule shell and the capsule core, respectively. Moreover, the capsule core loss, which is always neglected in prior study, is obtained through the mass ratio of the capsule core. Therefore, a universal and effective mechanical response model with microcapsule characteristics is developed. In addition, a set of orthogonal tests are designed based on the mechanical response model to analyze the contributions of the microcapsule components to the mechanical response. The results show that: (1) the proposed microcapsule mechanical response model has prediction errors of less than 30% for various types of microcapsule mechanical response results, and the gray correlation degree of the prediction trend is above 0.6. Compared to traditional models that can only predict trends, with an error rate of 400%, the proposed model has an improvement; (2) the loss of core is inevitable, and the three microcapsules in the study all have a core loss volume of 10–30%; (3) when the strain is large, the mechanical response of overall microcapsules is determined by the size and core of microcapsules. The results provide a theoretical basis for designing the microcapsules.

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Acknowledgements

This work was financially supported by the National Natural Science Foundation of China (Grant No. 51965037, 51565030).

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Authors and Affiliations

  1. School of Mechanical and Electrical Engineering, Lanzhou University of Technology, Lanzhou, 730000, China

    Hua Huang, Huiyang Huang, Ruotong Wang, Yaqiong Fan & Runlan Guo

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  1. Hua Huang
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  2. Huiyang Huang
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  3. Ruotong Wang
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Correspondence to Hua Huang.

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Huang, H., Huang, H., Wang, R. et al. Mechanical response model with core loss of microcapsules under uniaxial compression and its parameters analysis. Arch Appl Mech 93, 3625–3636 (2023). https://doi.org/10.1007/s00419-023-02457-6

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  • DOI: https://doi.org/10.1007/s00419-023-02457-6

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