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SCIENCE CHINA Physics, Mechanics & Astronomy, Volume 62 , Issue 1 : 014601(2019) https://doi.org/10.1007/s11433-018-9274-6

X-Mechanics—An endless frontier

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  • ReceivedJun 4, 2018
  • AcceptedJul 2, 2018
  • PublishedSep 27, 2018

Abstract

In contrast to the conventional wisdom that mechanics is a relatively mature subject, the new manifestation of mechanics in an extended or crossed form is unfolding. Mechanics is now powering all subjects, from physical sciences, life sciences to social sciences. We name this new phase for the development of mechanics X-Mechanics. The present article outlines the contents of X-Mechanics from four aspects: cross media, cross scales, cross compliances, and cross cyber/physical spaces. X-Mechanics constitutes an endless frontier of science and technology.


Funded by

the National Natural Science Foundation of China(Grant,No.,11621062,11725210,U1613202)


Acknowledgment

This work was supported by the National Natural Science Foundation of China (Grant Nos. 11621062, 11725210, and U1613202). The author expresses his/her thanks to the people helping with this work. Financial support by Zhejiang University on establishing a Center for X-Mechanics is sincerely acknowledged.


Author information

Wei Yang was born in 1954 in Beijing. He received his PhD degree from Brown University, USA in 1985. Currently, he is a Professor of Zhejiang University, a Member of Chinese Academy of Sciences, a Fellow of The World Academy of Sciences (TWAS), a Foreign Member of National Academy of Engineering (USA), and the President of the Chinese Society of Theoretical and Applied Mechanics (CSTAM).


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  • Figure 1

    (Color online) Top: the mechanisms of bonding dissimilar polymer networks. Bottom (from left to right): alternatively printing hydrogels and elastomers, printing hydrogel ionic circuit with the shape of anglerfish on the PDMS film, and comparison of PDMS-coated and naked hydrogels after dyed in red bath and washed in clean water [16], with the permission of authors.

  • Figure 2

    (Color online) (a) The flapping induced undulatory propulsion motion of soft fish, after Li et al. [18]; (b) testing at 110 MPa hydrostatic pressure [19].

  • Figure 3

    (Color online) (a) A multiscale view of a polycrystalline aggregate from electron distribution to continuum. (b) A unified data-driven approach may tackle the cross-scale problem of deformation and fracture. The insets are typical structures at different scales.

  • Figure 4

    (Color online) (a) The state-of-the-art aberration-corrected transmission electron microscopy simultaneously captures both the atomic arrangement and elemental information in 2D space. (b) A series of 2D images obtained by rotating the sample around a tilt axis lead to 3D reconstruction with the coordinates of individual atoms. (c) A dedicated four-degrees of freedom nano-manipulator is invented to facilitate this process.

  • Figure 5

    (Color online) Key elements in developing co3-robots share the same core of deep learning.

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