Atomistic study on the anomalous temperature-dependent dynamic tensile strength of ice under shock loading
Abstract
Although the compressive strength of ice under both quasi-static [M. Arakawa and N. Maeno, Mechanical strength of polycrystalline ice under uniaxial compression. Cold Reg. Sci. Tech 26 (1997), pp. 215–229.] and dynamic [X. Wu and V. Prakash, Dynamic compressive behavior of ice at cryogenic temperatures. Cold Reg. Sci. Tech 118 (2015), pp. 1–13.] loadings shows an anomalous temperature effect that the compression strength is insensitive to temperature in a specific temperature range below −100oC, it is still unclear whether the anomalous temperature exists for the tensile strength of ice at cryogenic temperatures. In this paper, the temperature-dependent dynamic tensile strength of ice 1 h under shock loading is investigated by molecular dynamics simulations. It is intriguing to see that the dynamic tensile strength of the ice exhibits a similar anomalous temperature effect, i.e. it is almost insensitive to temperature in the range 117 ∼ 163 K, which could be interpreted by the competitive mechanism between shock-induced pulverisation and melting. The evolution of the pentagonal-heptagonal defects and the ductile-to-brittle transformation are also observed with decreasing temperature, leading to the unique dynamic tensile behaviour of ice under shock.
Additional Information
© 2021 Taylor & Francis. Received 05 Nov 2020, Accepted 19 Feb 2021, Published online: 05 Mar 2021. This work was supported by the National Natural Science Foundation of China [Grant Nos. 11672315, and 11772347], Science Challenge Project [Grant No. TZ2018001], and the Strategic Priority Research Program of Chinese Academy of Sciences [Grant Nos. XDB22040302 and XDB22040303]. No potential conflict of interest was reported by the author(s).Additional details
- Eprint ID
- 108594
- Resolver ID
- CaltechAUTHORS:20210331-153525747
- 11672315
- National Natural Science Foundation of China
- 11772347
- National Natural Science Foundation of China
- TZ2018001
- Science Challenge Project
- XDB22040302
- Chinese Academy of Sciences
- XDB22040303
- Chinese Academy of Sciences
- Created
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2021-04-07Created from EPrint's datestamp field
- Updated
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2021-05-26Created from EPrint's last_modified field